Home / 242,314.28-334,425.05-138,988.79

Finding the Fourth Proportional to 242,314.28, 334,425.05 and 138,988.79

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Solution

The fourth proportional to 242,314.28, 334,425.05 and 138,988.79 is: 191,822.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,314.28 : 334,425.05 = 138,988.79 : x
  2. Step 2: Convert to fraction form
    242,314.28/334,425.05 = 138,988.79/x
  3. Step 3: Cross multiply
    242,314.28x = 334,425.05 × 138,988.79
  4. Step 4: Simplify right side
    242,314.28x = 46,481,333,045.19
  5. Step 5: Solve for x
    x = 46,481,333,045.19/242,314.28
  6. Step 6: Final answer
    x = 191,822.51

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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.