Home / 321,350.04-443,412.90-185,389.20

Finding the Fourth Proportional to 321,350.04, 443,412.90 and 185,389.20

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Solution

The fourth proportional to 321,350.04, 443,412.90 and 185,389.20 is: 255,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,350.04 : 443,412.90 = 185,389.20 : x
  2. Step 2: Convert to fraction form
    321,350.04/443,412.90 = 185,389.20/x
  3. Step 3: Cross multiply
    321,350.04x = 443,412.90 × 185,389.20
  4. Step 4: Simplify right side
    321,350.04x = 82,203,962,800.68
  5. Step 5: Solve for x
    x = 82,203,962,800.68/321,350.04
  6. Step 6: Final answer
    x = 255,808.16

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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.