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Finding the Fourth Proportional to 292,002.30, 438,003.45 and 197,999.10

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Solution

The fourth proportional to 292,002.30, 438,003.45 and 197,999.10 is: 296,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,002.30 : 438,003.45 = 197,999.10 : x
  2. Step 2: Convert to fraction form
    292,002.30/438,003.45 = 197,999.10/x
  3. Step 3: Cross multiply
    292,002.30x = 438,003.45 × 197,999.10
  4. Step 4: Simplify right side
    292,002.30x = 86,724,288,896.90
  5. Step 5: Solve for x
    x = 86,724,288,896.90/292,002.30
  6. Step 6: Final answer
    x = 296,998.65

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Similar ratio
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1.5x scale

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.