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Finding the Fourth Proportional to 324,023.80, 486,035.70 and 257,101.60

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Solution

The fourth proportional to 324,023.80, 486,035.70 and 257,101.60 is: 385,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,023.80 : 486,035.70 = 257,101.60 : x
  2. Step 2: Convert to fraction form
    324,023.80/486,035.70 = 257,101.60/x
  3. Step 3: Cross multiply
    324,023.80x = 486,035.70 × 257,101.60
  4. Step 4: Simplify right side
    324,023.80x = 124,960,556,127.12
  5. Step 5: Solve for x
    x = 124,960,556,127.12/324,023.80
  6. Step 6: Final answer
    x = 385,652.40

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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.