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Finding the Fourth Proportional to 361,749.60, 542,624.40 and 291,765.60

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Solution

The fourth proportional to 361,749.60, 542,624.40 and 291,765.60 is: 437,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,749.60 : 542,624.40 = 291,765.60 : x
  2. Step 2: Convert to fraction form
    361,749.60/542,624.40 = 291,765.60/x
  3. Step 3: Cross multiply
    361,749.60x = 542,624.40 × 291,765.60
  4. Step 4: Simplify right side
    361,749.60x = 158,319,133,640.64
  5. Step 5: Solve for x
    x = 158,319,133,640.64/361,749.60
  6. Step 6: Final answer
    x = 437,648.40

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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.