Home / 386,250.50-532,908.32-243,153.38

Finding the Fourth Proportional to 386,250.50, 532,908.32 and 243,153.38

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Solution

The fourth proportional to 386,250.50, 532,908.32 and 243,153.38 is: 335,477.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,250.50 : 532,908.32 = 243,153.38 : x
  2. Step 2: Convert to fraction form
    386,250.50/532,908.32 = 243,153.38/x
  3. Step 3: Cross multiply
    386,250.50x = 532,908.32 × 243,153.38
  4. Step 4: Simplify right side
    386,250.50x = 129,578,459,238.12
  5. Step 5: Solve for x
    x = 129,578,459,238.12/386,250.50
  6. Step 6: Final answer
    x = 335,477.78

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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.