Home / 319,976.02-479,964.06-83,318.02

Finding the Fourth Proportional to 319,976.02, 479,964.06 and 83,318.02

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Solution

The fourth proportional to 319,976.02, 479,964.06 and 83,318.02 is: 124,977.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,976.02 : 479,964.06 = 83,318.02 : x
  2. Step 2: Convert to fraction form
    319,976.02/479,964.06 = 83,318.02/x
  3. Step 3: Cross multiply
    319,976.02x = 479,964.06 × 83,318.02
  4. Step 4: Simplify right side
    319,976.02x = 39,989,655,150.36
  5. Step 5: Solve for x
    x = 39,989,655,150.36/319,976.02
  6. Step 6: Final answer
    x = 124,977.04

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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.