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Finding the Fourth Proportional to 342,139.80, 513,062.91 and 117,522.84

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Solution

The fourth proportional to 342,139.80, 513,062.91 and 117,522.84 is: 176,233.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,139.80 : 513,062.91 = 117,522.84 : x
  2. Step 2: Convert to fraction form
    342,139.80/513,062.91 = 117,522.84/x
  3. Step 3: Cross multiply
    342,139.80x = 513,062.91 × 117,522.84
  4. Step 4: Simplify right side
    342,139.80x = 60,296,610,281.86
  5. Step 5: Solve for x
    x = 60,296,610,281.86/342,139.80
  6. Step 6: Final answer
    x = 176,233.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.