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Finding the Fourth Proportional to 355,364.68, 490,541.52 and 240,587.20

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Solution

The fourth proportional to 355,364.68, 490,541.52 and 240,587.20 is: 332,103.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,364.68 : 490,541.52 = 240,587.20 : x
  2. Step 2: Convert to fraction form
    355,364.68/490,541.52 = 240,587.20/x
  3. Step 3: Cross multiply
    355,364.68x = 490,541.52 × 240,587.20
  4. Step 4: Simplify right side
    355,364.68x = 118,018,010,780.54
  5. Step 5: Solve for x
    x = 118,018,010,780.54/355,364.68
  6. Step 6: Final answer
    x = 332,103.94

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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.