Home / 296,629.60-408,320.40-258,838.24

Finding the Fourth Proportional to 296,629.60, 408,320.40 and 258,838.24

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Solution

The fourth proportional to 296,629.60, 408,320.40 and 258,838.24 is: 356,299.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,629.60 : 408,320.40 = 258,838.24 : x
  2. Step 2: Convert to fraction form
    296,629.60/408,320.40 = 258,838.24/x
  3. Step 3: Cross multiply
    296,629.60x = 408,320.40 × 258,838.24
  4. Step 4: Simplify right side
    296,629.60x = 105,688,933,692.10
  5. Step 5: Solve for x
    x = 105,688,933,692.10/296,629.60
  6. Step 6: Final answer
    x = 356,299.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.