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Finding the Fourth Proportional to 328,341.39, 492,512.18 and 79,023.39

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Solution

The fourth proportional to 328,341.39, 492,512.18 and 79,023.39 is: 118,535.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,341.39 : 492,512.18 = 79,023.39 : x
  2. Step 2: Convert to fraction form
    328,341.39/492,512.18 = 79,023.39/x
  3. Step 3: Cross multiply
    328,341.39x = 492,512.18 × 79,023.39
  4. Step 4: Simplify right side
    328,341.39x = 38,919,981,684.77
  5. Step 5: Solve for x
    x = 38,919,981,684.77/328,341.39
  6. Step 6: Final answer
    x = 118,535.11

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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.