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Finding the Fourth Proportional to 304,864.76, 420,543.86 and 240,095.39

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Solution

The fourth proportional to 304,864.76, 420,543.86 and 240,095.39 is: 331,198.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,864.76 : 420,543.86 = 240,095.39 : x
  2. Step 2: Convert to fraction form
    304,864.76/420,543.86 = 240,095.39/x
  3. Step 3: Cross multiply
    304,864.76x = 420,543.86 × 240,095.39
  4. Step 4: Simplify right side
    304,864.76x = 100,970,641,816.44
  5. Step 5: Solve for x
    x = 100,970,641,816.44/304,864.76
  6. Step 6: Final answer
    x = 331,198.14

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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.