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Finding the Fourth Proportional to 181,447.60, 272,214.60 and 76,212.40

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Solution

The fourth proportional to 181,447.60, 272,214.60 and 76,212.40 is: 114,336.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,447.60 : 272,214.60 = 76,212.40 : x
  2. Step 2: Convert to fraction form
    181,447.60/272,214.60 = 76,212.40/x
  3. Step 3: Cross multiply
    181,447.60x = 272,214.60 × 76,212.40
  4. Step 4: Simplify right side
    181,447.60x = 20,746,127,981.04
  5. Step 5: Solve for x
    x = 20,746,127,981.04/181,447.60
  6. Step 6: Final answer
    x = 114,336.75

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1.5x scale

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.