Home / 387,159.95-534,263.38-215,089.98

Finding the Fourth Proportional to 387,159.95, 534,263.38 and 215,089.98

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Solution

The fourth proportional to 387,159.95, 534,263.38 and 215,089.98 is: 296,814.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,159.95 : 534,263.38 = 215,089.98 : x
  2. Step 2: Convert to fraction form
    387,159.95/534,263.38 = 215,089.98/x
  3. Step 3: Cross multiply
    387,159.95x = 534,263.38 × 215,089.98
  4. Step 4: Simplify right side
    387,159.95x = 114,914,695,972.17
  5. Step 5: Solve for x
    x = 114,914,695,972.17/387,159.95
  6. Step 6: Final answer
    x = 296,814.53

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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.