Home / 558,429.30-837,643.95-221,550.30

Finding the Fourth Proportional to 558,429.30, 837,643.95 and 221,550.30

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Solution

The fourth proportional to 558,429.30, 837,643.95 and 221,550.30 is: 332,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,429.30 : 837,643.95 = 221,550.30 : x
  2. Step 2: Convert to fraction form
    558,429.30/837,643.95 = 221,550.30/x
  3. Step 3: Cross multiply
    558,429.30x = 837,643.95 × 221,550.30
  4. Step 4: Simplify right side
    558,429.30x = 185,580,268,415.69
  5. Step 5: Solve for x
    x = 185,580,268,415.69/558,429.30
  6. Step 6: Final answer
    x = 332,325.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.