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Finding the Fourth Proportional to 465,886.52, 642,878.88 and 272,339.54

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Solution

The fourth proportional to 465,886.52, 642,878.88 and 272,339.54 is: 375,802.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,886.52 : 642,878.88 = 272,339.54 : x
  2. Step 2: Convert to fraction form
    465,886.52/642,878.88 = 272,339.54/x
  3. Step 3: Cross multiply
    465,886.52x = 642,878.88 × 272,339.54
  4. Step 4: Simplify right side
    465,886.52x = 175,081,338,454.92
  5. Step 5: Solve for x
    x = 175,081,338,454.92/465,886.52
  6. Step 6: Final answer
    x = 375,802.54

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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.