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Finding the Fourth Proportional to 143,593.17, 215,389.70 and 38,409.40

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Solution

The fourth proportional to 143,593.17, 215,389.70 and 38,409.40 is: 57,614.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,593.17 : 215,389.70 = 38,409.40 : x
  2. Step 2: Convert to fraction form
    143,593.17/215,389.70 = 38,409.40/x
  3. Step 3: Cross multiply
    143,593.17x = 215,389.70 × 38,409.40
  4. Step 4: Simplify right side
    143,593.17x = 8,272,989,364.41
  5. Step 5: Solve for x
    x = 8,272,989,364.41/143,593.17
  6. Step 6: Final answer
    x = 57,614.09

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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.