Home / 324,001.40-486,002.10-205,320.20

Finding the Fourth Proportional to 324,001.40, 486,002.10 and 205,320.20

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Solution

The fourth proportional to 324,001.40, 486,002.10 and 205,320.20 is: 307,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,001.40 : 486,002.10 = 205,320.20 : x
  2. Step 2: Convert to fraction form
    324,001.40/486,002.10 = 205,320.20/x
  3. Step 3: Cross multiply
    324,001.40x = 486,002.10 × 205,320.20
  4. Step 4: Simplify right side
    324,001.40x = 99,786,048,372.42
  5. Step 5: Solve for x
    x = 99,786,048,372.42/324,001.40
  6. Step 6: Final answer
    x = 307,980.30

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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.