Home / 209,691.55-314,275.02-165,142.36

Finding the Fourth Proportional to 209,691.55, 314,275.02 and 165,142.36

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Solution

The fourth proportional to 209,691.55, 314,275.02 and 165,142.36 is: 247,506.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,691.55 : 314,275.02 = 165,142.36 : x
  2. Step 2: Convert to fraction form
    209,691.55/314,275.02 = 165,142.36/x
  3. Step 3: Cross multiply
    209,691.55x = 314,275.02 × 165,142.36
  4. Step 4: Simplify right side
    209,691.55x = 51,900,118,491.85
  5. Step 5: Solve for x
    x = 51,900,118,491.85/209,691.55
  6. Step 6: Final answer
    x = 247,506.96

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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.