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Finding the Fourth Proportional to 374,632.80, 561,949.20 and 121,937.10

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Solution

The fourth proportional to 374,632.80, 561,949.20 and 121,937.10 is: 182,905.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,632.80 : 561,949.20 = 121,937.10 : x
  2. Step 2: Convert to fraction form
    374,632.80/561,949.20 = 121,937.10/x
  3. Step 3: Cross multiply
    374,632.80x = 561,949.20 × 121,937.10
  4. Step 4: Simplify right side
    374,632.80x = 68,522,455,795.32
  5. Step 5: Solve for x
    x = 68,522,455,795.32/374,632.80
  6. Step 6: Final answer
    x = 182,905.65

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Similar ratio
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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.