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Finding the Fourth Proportional to 342,143.60, 513,228.24 and 117,658.88

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Solution

The fourth proportional to 342,143.60, 513,228.24 and 117,658.88 is: 176,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,143.60 : 513,228.24 = 117,658.88 : x
  2. Step 2: Convert to fraction form
    342,143.60/513,228.24 = 117,658.88/x
  3. Step 3: Cross multiply
    342,143.60x = 513,228.24 × 117,658.88
  4. Step 4: Simplify right side
    342,143.60x = 60,385,859,902.77
  5. Step 5: Solve for x
    x = 60,385,859,902.77/342,143.60
  6. Step 6: Final answer
    x = 176,492.74

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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.