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Finding the Fourth Proportional to 342,143.64, 513,166.80 and 117,500.40

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Solution

The fourth proportional to 342,143.64, 513,166.80 and 117,500.40 is: 176,233.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,143.64 : 513,166.80 = 117,500.40 : x
  2. Step 2: Convert to fraction form
    342,143.64/513,166.80 = 117,500.40/x
  3. Step 3: Cross multiply
    342,143.64x = 513,166.80 × 117,500.40
  4. Step 4: Simplify right side
    342,143.64x = 60,297,304,266.72
  5. Step 5: Solve for x
    x = 60,297,304,266.72/342,143.64
  6. Step 6: Final answer
    x = 176,233.89

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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.