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Finding the Fourth Proportional to 560,023.66, 840,033.84 and 139,299.52

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Solution

The fourth proportional to 560,023.66, 840,033.84 and 139,299.52 is: 208,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,023.66 : 840,033.84 = 139,299.52 : x
  2. Step 2: Convert to fraction form
    560,023.66/840,033.84 = 139,299.52/x
  3. Step 3: Cross multiply
    560,023.66x = 840,033.84 × 139,299.52
  4. Step 4: Simplify right side
    560,023.66x = 117,016,310,695.76
  5. Step 5: Solve for x
    x = 117,016,310,695.76/560,023.66
  6. Step 6: Final answer
    x = 208,948.87

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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.