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Finding the Fourth Proportional to 560,169.42, 840,253.86 and 205,211.22

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Solution

The fourth proportional to 560,169.42, 840,253.86 and 205,211.22 is: 307,816.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,169.42 : 840,253.86 = 205,211.22 : x
  2. Step 2: Convert to fraction form
    560,169.42/840,253.86 = 205,211.22/x
  3. Step 3: Cross multiply
    560,169.42x = 840,253.86 × 205,211.22
  4. Step 4: Simplify right side
    560,169.42x = 172,429,519,720.31
  5. Step 5: Solve for x
    x = 172,429,519,720.31/560,169.42
  6. Step 6: Final answer
    x = 307,816.73

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1.5x scale

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.