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Finding the Fourth Proportional to 361,478.18, 542,366.11 and 158,970.18

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Solution

The fourth proportional to 361,478.18, 542,366.11 and 158,970.18 is: 238,520.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,478.18 : 542,366.11 = 158,970.18 : x
  2. Step 2: Convert to fraction form
    361,478.18/542,366.11 = 158,970.18/x
  3. Step 3: Cross multiply
    361,478.18x = 542,366.11 × 158,970.18
  4. Step 4: Simplify right side
    361,478.18x = 86,220,038,132.60
  5. Step 5: Solve for x
    x = 86,220,038,132.60/361,478.18
  6. Step 6: Final answer
    x = 238,520.73

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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.