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Finding the Fourth Proportional to 262,010.20, 392,108.10 and 156,904.60

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Solution

The fourth proportional to 262,010.20, 392,108.10 and 156,904.60 is: 234,813.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,010.20 : 392,108.10 = 156,904.60 : x
  2. Step 2: Convert to fraction form
    262,010.20/392,108.10 = 156,904.60/x
  3. Step 3: Cross multiply
    262,010.20x = 392,108.10 × 156,904.60
  4. Step 4: Simplify right side
    262,010.20x = 61,523,564,587.26
  5. Step 5: Solve for x
    x = 61,523,564,587.26/262,010.20
  6. Step 6: Final answer
    x = 234,813.62

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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.