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Finding the Fourth Proportional to 344,710.20, 517,356.90 and 155,461.80

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Solution

The fourth proportional to 344,710.20, 517,356.90 and 155,461.80 is: 233,324.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,710.20 : 517,356.90 = 155,461.80 : x
  2. Step 2: Convert to fraction form
    344,710.20/517,356.90 = 155,461.80/x
  3. Step 3: Cross multiply
    344,710.20x = 517,356.90 × 155,461.80
  4. Step 4: Simplify right side
    344,710.20x = 80,429,234,916.42
  5. Step 5: Solve for x
    x = 80,429,234,916.42/344,710.20
  6. Step 6: Final answer
    x = 233,324.21

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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.