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Finding the Fourth Proportional to 279,826.08, 386,148.72 and 152,498.92

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Solution

The fourth proportional to 279,826.08, 386,148.72 and 152,498.92 is: 210,442.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,826.08 : 386,148.72 = 152,498.92 : x
  2. Step 2: Convert to fraction form
    279,826.08/386,148.72 = 152,498.92/x
  3. Step 3: Cross multiply
    279,826.08x = 386,148.72 × 152,498.92
  4. Step 4: Simplify right side
    279,826.08x = 58,887,262,759.38
  5. Step 5: Solve for x
    x = 58,887,262,759.38/279,826.08
  6. Step 6: Final answer
    x = 210,442.37

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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.