Home / 316,660.16-436,987.68-173,420.48

Finding the Fourth Proportional to 316,660.16, 436,987.68 and 173,420.48

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Solution

The fourth proportional to 316,660.16, 436,987.68 and 173,420.48 is: 239,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,660.16 : 436,987.68 = 173,420.48 : x
  2. Step 2: Convert to fraction form
    316,660.16/436,987.68 = 173,420.48/x
  3. Step 3: Cross multiply
    316,660.16x = 436,987.68 × 173,420.48
  4. Step 4: Simplify right side
    316,660.16x = 75,782,613,219.69
  5. Step 5: Solve for x
    x = 75,782,613,219.69/316,660.16
  6. Step 6: Final answer
    x = 239,318.43

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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.