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Finding the Fourth Proportional to 332,285.20, 498,427.80 and 155,138.20

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Solution

The fourth proportional to 332,285.20, 498,427.80 and 155,138.20 is: 232,707.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,285.20 : 498,427.80 = 155,138.20 : x
  2. Step 2: Convert to fraction form
    332,285.20/498,427.80 = 155,138.20/x
  3. Step 3: Cross multiply
    332,285.20x = 498,427.80 × 155,138.20
  4. Step 4: Simplify right side
    332,285.20x = 77,325,191,721.96
  5. Step 5: Solve for x
    x = 77,325,191,721.96/332,285.20
  6. Step 6: Final answer
    x = 232,707.30

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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.