Home / 319,700.48-479,574.25-91,986.85

Finding the Fourth Proportional to 319,700.48, 479,574.25 and 91,986.85

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Solution

The fourth proportional to 319,700.48, 479,574.25 and 91,986.85 is: 137,987.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,700.48 : 479,574.25 = 91,986.85 : x
  2. Step 2: Convert to fraction form
    319,700.48/479,574.25 = 91,986.85/x
  3. Step 3: Cross multiply
    319,700.48x = 479,574.25 × 91,986.85
  4. Step 4: Simplify right side
    319,700.48x = 44,114,522,787.93
  5. Step 5: Solve for x
    x = 44,114,522,787.93/319,700.48
  6. Step 6: Final answer
    x = 137,987.04

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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.