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Finding the Fourth Proportional to 342,985.92, 514,352.52 and 118,288.68

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Solution

The fourth proportional to 342,985.92, 514,352.52 and 118,288.68 is: 177,389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,985.92 : 514,352.52 = 118,288.68 : x
  2. Step 2: Convert to fraction form
    342,985.92/514,352.52 = 118,288.68/x
  3. Step 3: Cross multiply
    342,985.92x = 514,352.52 × 118,288.68
  4. Step 4: Simplify right side
    342,985.92x = 60,842,080,645.47
  5. Step 5: Solve for x
    x = 60,842,080,645.47/342,985.92
  6. Step 6: Final answer
    x = 177,389.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.