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Finding the Fourth Proportional to 289,551.68, 399,620.76 and 162,254.24

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Solution

The fourth proportional to 289,551.68, 399,620.76 and 162,254.24 is: 223,932.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,551.68 : 399,620.76 = 162,254.24 : x
  2. Step 2: Convert to fraction form
    289,551.68/399,620.76 = 162,254.24/x
  3. Step 3: Cross multiply
    289,551.68x = 399,620.76 × 162,254.24
  4. Step 4: Simplify right side
    289,551.68x = 64,840,162,702.02
  5. Step 5: Solve for x
    x = 64,840,162,702.02/289,551.68
  6. Step 6: Final answer
    x = 223,932.95

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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.