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Finding the Fourth Proportional to 372,142.80, 558,214.20 and 357,627.60

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Solution

The fourth proportional to 372,142.80, 558,214.20 and 357,627.60 is: 536,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,142.80 : 558,214.20 = 357,627.60 : x
  2. Step 2: Convert to fraction form
    372,142.80/558,214.20 = 357,627.60/x
  3. Step 3: Cross multiply
    372,142.80x = 558,214.20 × 357,627.60
  4. Step 4: Simplify right side
    372,142.80x = 199,632,804,631.92
  5. Step 5: Solve for x
    x = 199,632,804,631.92/372,142.80
  6. Step 6: Final answer
    x = 536,441.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.