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Finding the Fourth Proportional to 202,981.60, 304,472.40 and 98,005.60

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Solution

The fourth proportional to 202,981.60, 304,472.40 and 98,005.60 is: 147,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,981.60 : 304,472.40 = 98,005.60 : x
  2. Step 2: Convert to fraction form
    202,981.60/304,472.40 = 98,005.60/x
  3. Step 3: Cross multiply
    202,981.60x = 304,472.40 × 98,005.60
  4. Step 4: Simplify right side
    202,981.60x = 29,840,000,245.44
  5. Step 5: Solve for x
    x = 29,840,000,245.44/202,981.60
  6. Step 6: Final answer
    x = 147,008.40

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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.