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Finding the Fourth Proportional to 317,069.40, 437,323.95 and 202,426.86

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Solution

The fourth proportional to 317,069.40, 437,323.95 and 202,426.86 is: 279,201.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,069.40 : 437,323.95 = 202,426.86 : x
  2. Step 2: Convert to fraction form
    317,069.40/437,323.95 = 202,426.86/x
  3. Step 3: Cross multiply
    317,069.40x = 437,323.95 × 202,426.86
  4. Step 4: Simplify right side
    317,069.40x = 88,526,114,001.30
  5. Step 5: Solve for x
    x = 88,526,114,001.30/317,069.40
  6. Step 6: Final answer
    x = 279,201.06

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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.