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Finding the Fourth Proportional to 372,004.40, 513,340.80 and 202,234.88

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Solution

The fourth proportional to 372,004.40, 513,340.80 and 202,234.88 is: 279,070.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,004.40 : 513,340.80 = 202,234.88 : x
  2. Step 2: Convert to fraction form
    372,004.40/513,340.80 = 202,234.88/x
  3. Step 3: Cross multiply
    372,004.40x = 513,340.80 × 202,234.88
  4. Step 4: Simplify right side
    372,004.40x = 103,815,415,087.10
  5. Step 5: Solve for x
    x = 103,815,415,087.10/372,004.40
  6. Step 6: Final answer
    x = 279,070.40

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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.