Home / 316,522.23-474,784.20-79,864.89

Finding the Fourth Proportional to 316,522.23, 474,784.20 and 79,864.89

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Solution

The fourth proportional to 316,522.23, 474,784.20 and 79,864.89 is: 119,797.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,522.23 : 474,784.20 = 79,864.89 : x
  2. Step 2: Convert to fraction form
    316,522.23/474,784.20 = 79,864.89/x
  3. Step 3: Cross multiply
    316,522.23x = 474,784.20 × 79,864.89
  4. Step 4: Simplify right side
    316,522.23x = 37,918,587,906.74
  5. Step 5: Solve for x
    x = 37,918,587,906.74/316,522.23
  6. Step 6: Final answer
    x = 119,797.55

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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.