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Finding the Fourth Proportional to 260,030.10, 389,785.95 and 119,543.70

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Solution

The fourth proportional to 260,030.10, 389,785.95 and 119,543.70 is: 179,196.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,030.10 : 389,785.95 = 119,543.70 : x
  2. Step 2: Convert to fraction form
    260,030.10/389,785.95 = 119,543.70/x
  3. Step 3: Cross multiply
    260,030.10x = 389,785.95 × 119,543.70
  4. Step 4: Simplify right side
    260,030.10x = 46,596,454,671.02
  5. Step 5: Solve for x
    x = 46,596,454,671.02/260,030.10
  6. Step 6: Final answer
    x = 179,196.39

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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.