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Finding the Fourth Proportional to 144,889.60, 217,334.40 and 89,516.80

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Solution

The fourth proportional to 144,889.60, 217,334.40 and 89,516.80 is: 134,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,889.60 : 217,334.40 = 89,516.80 : x
  2. Step 2: Convert to fraction form
    144,889.60/217,334.40 = 89,516.80/x
  3. Step 3: Cross multiply
    144,889.60x = 217,334.40 × 89,516.80
  4. Step 4: Simplify right side
    144,889.60x = 19,455,080,017.92
  5. Step 5: Solve for x
    x = 19,455,080,017.92/144,889.60
  6. Step 6: Final answer
    x = 134,275.20

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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.