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Finding the Fourth Proportional to 216,008.60, 324,110.10 and 103,645.40

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Solution

The fourth proportional to 216,008.60, 324,110.10 and 103,645.40 is: 155,514.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,008.60 : 324,110.10 = 103,645.40 : x
  2. Step 2: Convert to fraction form
    216,008.60/324,110.10 = 103,645.40/x
  3. Step 3: Cross multiply
    216,008.60x = 324,110.10 × 103,645.40
  4. Step 4: Simplify right side
    216,008.60x = 33,592,520,958.54
  5. Step 5: Solve for x
    x = 33,592,520,958.54/216,008.60
  6. Step 6: Final answer
    x = 155,514.74

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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.