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Finding the Fourth Proportional to 353,918.76, 488,514.61 and 240,807.12

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Solution

The fourth proportional to 353,918.76, 488,514.61 and 240,807.12 is: 332,386.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,918.76 : 488,514.61 = 240,807.12 : x
  2. Step 2: Convert to fraction form
    353,918.76/488,514.61 = 240,807.12/x
  3. Step 3: Cross multiply
    353,918.76x = 488,514.61 × 240,807.12
  4. Step 4: Simplify right side
    353,918.76x = 117,637,793,869.45
  5. Step 5: Solve for x
    x = 117,637,793,869.45/353,918.76
  6. Step 6: Final answer
    x = 332,386.44

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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.