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Finding the Fourth Proportional to 485,466.72, 669,930.13 and 270,602.17

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Solution

The fourth proportional to 485,466.72, 669,930.13 and 270,602.17 is: 373,423.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,466.72 : 669,930.13 = 270,602.17 : x
  2. Step 2: Convert to fraction form
    485,466.72/669,930.13 = 270,602.17/x
  3. Step 3: Cross multiply
    485,466.72x = 669,930.13 × 270,602.17
  4. Step 4: Simplify right side
    485,466.72x = 181,284,549,358.17
  5. Step 5: Solve for x
    x = 181,284,549,358.17/485,466.72
  6. Step 6: Final answer
    x = 373,423.23

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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.