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Finding the Fourth Proportional to 372,242.40, 558,363.60 and 288,261.60

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Solution

The fourth proportional to 372,242.40, 558,363.60 and 288,261.60 is: 432,392.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,242.40 : 558,363.60 = 288,261.60 : x
  2. Step 2: Convert to fraction form
    372,242.40/558,363.60 = 288,261.60/x
  3. Step 3: Cross multiply
    372,242.40x = 558,363.60 × 288,261.60
  4. Step 4: Simplify right side
    372,242.40x = 160,954,784,717.76
  5. Step 5: Solve for x
    x = 160,954,784,717.76/372,242.40
  6. Step 6: Final answer
    x = 432,392.40

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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.