Home / 387,518.17-534,552.12-242,071.11

Finding the Fourth Proportional to 387,518.17, 534,552.12 and 242,071.11

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Solution

The fourth proportional to 387,518.17, 534,552.12 and 242,071.11 is: 333,918.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,518.17 : 534,552.12 = 242,071.11 : x
  2. Step 2: Convert to fraction form
    387,518.17/534,552.12 = 242,071.11/x
  3. Step 3: Cross multiply
    387,518.17x = 534,552.12 × 242,071.11
  4. Step 4: Simplify right side
    387,518.17x = 129,399,625,041.25
  5. Step 5: Solve for x
    x = 129,399,625,041.25/387,518.17
  6. Step 6: Final answer
    x = 333,918.86

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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.