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Finding the Fourth Proportional to 371,803.53, 513,088.92 and 202,037.25

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Solution

The fourth proportional to 371,803.53, 513,088.92 and 202,037.25 is: 278,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,803.53 : 513,088.92 = 202,037.25 : x
  2. Step 2: Convert to fraction form
    371,803.53/513,088.92 = 202,037.25/x
  3. Step 3: Cross multiply
    371,803.53x = 513,088.92 × 202,037.25
  4. Step 4: Simplify right side
    371,803.53x = 103,663,074,402.27
  5. Step 5: Solve for x
    x = 103,663,074,402.27/371,803.53
  6. Step 6: Final answer
    x = 278,811.43

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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.