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Finding the Fourth Proportional to 372,979, 514,704.48 and 203,214.32

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Solution

The fourth proportional to 372,979, 514,704.48 and 203,214.32 is: 280,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,979 : 514,704.48 = 203,214.32 : x
  2. Step 2: Convert to fraction form
    372,979/514,704.48 = 203,214.32/x
  3. Step 3: Cross multiply
    372,979x = 514,704.48 × 203,214.32
  4. Step 4: Simplify right side
    372,979x = 104,595,320,904.15
  5. Step 5: Solve for x
    x = 104,595,320,904.15/372,979
  6. Step 6: Final answer
    x = 280,432.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.