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Finding the Fourth Proportional to 256,901.70, 385,352.55 and 246,404.10

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Solution

The fourth proportional to 256,901.70, 385,352.55 and 246,404.10 is: 369,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,901.70 : 385,352.55 = 246,404.10 : x
  2. Step 2: Convert to fraction form
    256,901.70/385,352.55 = 246,404.10/x
  3. Step 3: Cross multiply
    256,901.70x = 385,352.55 × 246,404.10
  4. Step 4: Simplify right side
    256,901.70x = 94,952,448,265.46
  5. Step 5: Solve for x
    x = 94,952,448,265.46/256,901.70
  6. Step 6: Final answer
    x = 369,606.15

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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.