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Finding the Fourth Proportional to 560,568.68, 840,353.02 and 205,499.80

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Solution

The fourth proportional to 560,568.68, 840,353.02 and 205,499.80 is: 308,066.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,568.68 : 840,353.02 = 205,499.80 : x
  2. Step 2: Convert to fraction form
    560,568.68/840,353.02 = 205,499.80/x
  3. Step 3: Cross multiply
    560,568.68x = 840,353.02 × 205,499.80
  4. Step 4: Simplify right side
    560,568.68x = 172,692,377,539.40
  5. Step 5: Solve for x
    x = 172,692,377,539.40/560,568.68
  6. Step 6: Final answer
    x = 308,066.40

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Why These Related Problems?

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