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Finding the Fourth Proportional to 324,625.60, 486,938.40 and 103,009.60

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Solution

The fourth proportional to 324,625.60, 486,938.40 and 103,009.60 is: 154,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,625.60 : 486,938.40 = 103,009.60 : x
  2. Step 2: Convert to fraction form
    324,625.60/486,938.40 = 103,009.60/x
  3. Step 3: Cross multiply
    324,625.60x = 486,938.40 × 103,009.60
  4. Step 4: Simplify right side
    324,625.60x = 50,159,329,808.64
  5. Step 5: Solve for x
    x = 50,159,329,808.64/324,625.60
  6. Step 6: Final answer
    x = 154,514.40

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Similar ratio
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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.