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Finding the Fourth Proportional to 202,881.70, 304,572.15 and 128,001.70

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Solution

The fourth proportional to 202,881.70, 304,572.15 and 128,001.70 is: 192,160.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,881.70 : 304,572.15 = 128,001.70 : x
  2. Step 2: Convert to fraction form
    202,881.70/304,572.15 = 128,001.70/x
  3. Step 3: Cross multiply
    202,881.70x = 304,572.15 × 128,001.70
  4. Step 4: Simplify right side
    202,881.70x = 38,985,752,972.66
  5. Step 5: Solve for x
    x = 38,985,752,972.66/202,881.70
  6. Step 6: Final answer
    x = 192,160.03

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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.