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Finding the Fourth Proportional to 153,225.60, 229,411.80 and 78,183.60

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Solution

The fourth proportional to 153,225.60, 229,411.80 and 78,183.60 is: 117,057.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,225.60 : 229,411.80 = 78,183.60 : x
  2. Step 2: Convert to fraction form
    153,225.60/229,411.80 = 78,183.60/x
  3. Step 3: Cross multiply
    153,225.60x = 229,411.80 × 78,183.60
  4. Step 4: Simplify right side
    153,225.60x = 17,936,240,406.48
  5. Step 5: Solve for x
    x = 17,936,240,406.48/153,225.60
  6. Step 6: Final answer
    x = 117,057.73

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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.