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Finding the Fourth Proportional to 292,003.60, 438,005.40 and 187,027.60

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Solution

The fourth proportional to 292,003.60, 438,005.40 and 187,027.60 is: 280,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,003.60 : 438,005.40 = 187,027.60 : x
  2. Step 2: Convert to fraction form
    292,003.60/438,005.40 = 187,027.60/x
  3. Step 3: Cross multiply
    292,003.60x = 438,005.40 × 187,027.60
  4. Step 4: Simplify right side
    292,003.60x = 81,919,098,749.04
  5. Step 5: Solve for x
    x = 81,919,098,749.04/292,003.60
  6. Step 6: Final answer
    x = 280,541.40

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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.