Home / 486,289.20-729,088.20-220,177.20

Finding the Fourth Proportional to 486,289.20, 729,088.20 and 220,177.20

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Solution

The fourth proportional to 486,289.20, 729,088.20 and 220,177.20 is: 330,109.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,289.20 : 729,088.20 = 220,177.20 : x
  2. Step 2: Convert to fraction form
    486,289.20/729,088.20 = 220,177.20/x
  3. Step 3: Cross multiply
    486,289.20x = 729,088.20 × 220,177.20
  4. Step 4: Simplify right side
    486,289.20x = 160,528,598,429.04
  5. Step 5: Solve for x
    x = 160,528,598,429.04/486,289.20
  6. Step 6: Final answer
    x = 330,109.32

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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.