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Finding the Fourth Proportional to 304,472.52, 420,172.80 and 168,515.76

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Solution

The fourth proportional to 304,472.52, 420,172.80 and 168,515.76 is: 232,552.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,472.52 : 420,172.80 = 168,515.76 : x
  2. Step 2: Convert to fraction form
    304,472.52/420,172.80 = 168,515.76/x
  3. Step 3: Cross multiply
    304,472.52x = 420,172.80 × 168,515.76
  4. Step 4: Simplify right side
    304,472.52x = 70,805,738,723.33
  5. Step 5: Solve for x
    x = 70,805,738,723.33/304,472.52
  6. Step 6: Final answer
    x = 232,552.15

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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.