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Finding the Fourth Proportional to 155,346.80, 233,020.20 and 99,359.60

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Solution

The fourth proportional to 155,346.80, 233,020.20 and 99,359.60 is: 149,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,346.80 : 233,020.20 = 99,359.60 : x
  2. Step 2: Convert to fraction form
    155,346.80/233,020.20 = 99,359.60/x
  3. Step 3: Cross multiply
    155,346.80x = 233,020.20 × 99,359.60
  4. Step 4: Simplify right side
    155,346.80x = 23,152,793,863.92
  5. Step 5: Solve for x
    x = 23,152,793,863.92/155,346.80
  6. Step 6: Final answer
    x = 149,039.40

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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.