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Finding the Fourth Proportional to 304,635, 420,397.74 and 170,524.92

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Solution

The fourth proportional to 304,635, 420,397.74 and 170,524.92 is: 235,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,635 : 420,397.74 = 170,524.92 : x
  2. Step 2: Convert to fraction form
    304,635/420,397.74 = 170,524.92/x
  3. Step 3: Cross multiply
    304,635x = 420,397.74 × 170,524.92
  4. Step 4: Simplify right side
    304,635x = 71,688,290,981.68
  5. Step 5: Solve for x
    x = 71,688,290,981.68/304,635
  6. Step 6: Final answer
    x = 235,325.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.