Home / 343,267.20-515,246.40-165,916.80

Finding the Fourth Proportional to 343,267.20, 515,246.40 and 165,916.80

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Solution

The fourth proportional to 343,267.20, 515,246.40 and 165,916.80 is: 249,042.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,267.20 : 515,246.40 = 165,916.80 : x
  2. Step 2: Convert to fraction form
    343,267.20/515,246.40 = 165,916.80/x
  3. Step 3: Cross multiply
    343,267.20x = 515,246.40 × 165,916.80
  4. Step 4: Simplify right side
    343,267.20x = 85,488,033,899.52
  5. Step 5: Solve for x
    x = 85,488,033,899.52/343,267.20
  6. Step 6: Final answer
    x = 249,042.24

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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.