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Finding the Fourth Proportional to 323,980.80, 486,001.44 and 121,522.92

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Solution

The fourth proportional to 323,980.80, 486,001.44 and 121,522.92 is: 182,295.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,980.80 : 486,001.44 = 121,522.92 : x
  2. Step 2: Convert to fraction form
    323,980.80/486,001.44 = 121,522.92/x
  3. Step 3: Cross multiply
    323,980.80x = 486,001.44 × 121,522.92
  4. Step 4: Simplify right side
    323,980.80x = 59,060,314,113.00
  5. Step 5: Solve for x
    x = 59,060,314,113.00/323,980.80
  6. Step 6: Final answer
    x = 182,295.72

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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.