Home / 242,721.75-334,967.36-135,292.57

Finding the Fourth Proportional to 242,721.75, 334,967.36 and 135,292.57

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Solution

The fourth proportional to 242,721.75, 334,967.36 and 135,292.57 is: 186,710.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,721.75 : 334,967.36 = 135,292.57 : x
  2. Step 2: Convert to fraction form
    242,721.75/334,967.36 = 135,292.57/x
  3. Step 3: Cross multiply
    242,721.75x = 334,967.36 × 135,292.57
  4. Step 4: Simplify right side
    242,721.75x = 45,318,595,000.52
  5. Step 5: Solve for x
    x = 45,318,595,000.52/242,721.75
  6. Step 6: Final answer
    x = 186,710.07

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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.