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Finding the Fourth Proportional to 353,117.88, 487,409.40 and 240,006.24

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Solution

The fourth proportional to 353,117.88, 487,409.40 and 240,006.24 is: 331,281.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,117.88 : 487,409.40 = 240,006.24 : x
  2. Step 2: Convert to fraction form
    353,117.88/487,409.40 = 240,006.24/x
  3. Step 3: Cross multiply
    353,117.88x = 487,409.40 × 240,006.24
  4. Step 4: Simplify right side
    353,117.88x = 116,981,297,434.66
  5. Step 5: Solve for x
    x = 116,981,297,434.66/353,117.88
  6. Step 6: Final answer
    x = 331,281.15

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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.