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Finding the Fourth Proportional to 255,582.60, 352,720.02 and 140,861.20

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Solution

The fourth proportional to 255,582.60, 352,720.02 and 140,861.20 is: 194,397.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,582.60 : 352,720.02 = 140,861.20 : x
  2. Step 2: Convert to fraction form
    255,582.60/352,720.02 = 140,861.20/x
  3. Step 3: Cross multiply
    255,582.60x = 352,720.02 × 140,861.20
  4. Step 4: Simplify right side
    255,582.60x = 49,684,565,281.22
  5. Step 5: Solve for x
    x = 49,684,565,281.22/255,582.60
  6. Step 6: Final answer
    x = 194,397.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.