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Finding the Fourth Proportional to 153,247.55, 211,478.30 and 88,719.52

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Solution

The fourth proportional to 153,247.55, 211,478.30 and 88,719.52 is: 122,431.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,247.55 : 211,478.30 = 88,719.52 : x
  2. Step 2: Convert to fraction form
    153,247.55/211,478.30 = 88,719.52/x
  3. Step 3: Cross multiply
    153,247.55x = 211,478.30 × 88,719.52
  4. Step 4: Simplify right side
    153,247.55x = 18,762,253,522.39
  5. Step 5: Solve for x
    x = 18,762,253,522.39/153,247.55
  6. Step 6: Final answer
    x = 122,431.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.