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Finding the Fourth Proportional to 560,357.85, 840,244.77 and 200,389.98

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Solution

The fourth proportional to 560,357.85, 840,244.77 and 200,389.98 is: 300,480.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,357.85 : 840,244.77 = 200,389.98 : x
  2. Step 2: Convert to fraction form
    560,357.85/840,244.77 = 200,389.98/x
  3. Step 3: Cross multiply
    560,357.85x = 840,244.77 × 200,389.98
  4. Step 4: Simplify right side
    560,357.85x = 168,376,632,655.41
  5. Step 5: Solve for x
    x = 168,376,632,655.41/560,357.85
  6. Step 6: Final answer
    x = 300,480.55

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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.