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Finding the Fourth Proportional to 342,317.12, 513,347.84 and 117,613.76

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Solution

The fourth proportional to 342,317.12, 513,347.84 and 117,613.76 is: 176,376.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,317.12 : 513,347.84 = 117,613.76 : x
  2. Step 2: Convert to fraction form
    342,317.12/513,347.84 = 117,613.76/x
  3. Step 3: Cross multiply
    342,317.12x = 513,347.84 × 117,613.76
  4. Step 4: Simplify right side
    342,317.12x = 60,376,769,650.28
  5. Step 5: Solve for x
    x = 60,376,769,650.28/342,317.12
  6. Step 6: Final answer
    x = 176,376.72

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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.