Home / 315,633.12-435,576.02-172,393.17

Finding the Fourth Proportional to 315,633.12, 435,576.02 and 172,393.17

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Solution

The fourth proportional to 315,633.12, 435,576.02 and 172,393.17 is: 237,903.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,633.12 : 435,576.02 = 172,393.17 : x
  2. Step 2: Convert to fraction form
    315,633.12/435,576.02 = 172,393.17/x
  3. Step 3: Cross multiply
    315,633.12x = 435,576.02 × 172,393.17
  4. Step 4: Simplify right side
    315,633.12x = 75,090,327,823.94
  5. Step 5: Solve for x
    x = 75,090,327,823.94/315,633.12
  6. Step 6: Final answer
    x = 237,903.83

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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.