Home / 514,811.21-772,221.36-211,372.25

Finding the Fourth Proportional to 514,811.21, 772,221.36 and 211,372.25

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Solution

The fourth proportional to 514,811.21, 772,221.36 and 211,372.25 is: 317,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,811.21 : 772,221.36 = 211,372.25 : x
  2. Step 2: Convert to fraction form
    514,811.21/772,221.36 = 211,372.25/x
  3. Step 3: Cross multiply
    514,811.21x = 772,221.36 × 211,372.25
  4. Step 4: Simplify right side
    514,811.21x = 163,226,163,292.80
  5. Step 5: Solve for x
    x = 163,226,163,292.80/514,811.21
  6. Step 6: Final answer
    x = 317,060.24

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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.