Home / 260,022.60-390,070.35-102,214.35

Finding the Fourth Proportional to 260,022.60, 390,070.35 and 102,214.35

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Solution

The fourth proportional to 260,022.60, 390,070.35 and 102,214.35 is: 153,335.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,022.60 : 390,070.35 = 102,214.35 : x
  2. Step 2: Convert to fraction form
    260,022.60/390,070.35 = 102,214.35/x
  3. Step 3: Cross multiply
    260,022.60x = 390,070.35 × 102,214.35
  4. Step 4: Simplify right side
    260,022.60x = 39,870,787,279.52
  5. Step 5: Solve for x
    x = 39,870,787,279.52/260,022.60
  6. Step 6: Final answer
    x = 153,335.85

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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.