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Finding the Fourth Proportional to 242,691.77, 334,926.05 and 135,262.55

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Solution

The fourth proportional to 242,691.77, 334,926.05 and 135,262.55 is: 186,668.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,691.77 : 334,926.05 = 135,262.55 : x
  2. Step 2: Convert to fraction form
    242,691.77/334,926.05 = 135,262.55/x
  3. Step 3: Cross multiply
    242,691.77x = 334,926.05 × 135,262.55
  4. Step 4: Simplify right side
    242,691.77x = 45,302,949,233.48
  5. Step 5: Solve for x
    x = 45,302,949,233.48/242,691.77
  6. Step 6: Final answer
    x = 186,668.67

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1.5x scale

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.