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Finding the Fourth Proportional to 155,609.60, 233,145.60 and 72,332.80

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Solution

The fourth proportional to 155,609.60, 233,145.60 and 72,332.80 is: 108,374.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,609.60 : 233,145.60 = 72,332.80 : x
  2. Step 2: Convert to fraction form
    155,609.60/233,145.60 = 72,332.80/x
  3. Step 3: Cross multiply
    155,609.60x = 233,145.60 × 72,332.80
  4. Step 4: Simplify right side
    155,609.60x = 16,864,074,055.68
  5. Step 5: Solve for x
    x = 16,864,074,055.68/155,609.60
  6. Step 6: Final answer
    x = 108,374.25

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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.