Home / 315,826.12-435,846.32-172,595.04

Finding the Fourth Proportional to 315,826.12, 435,846.32 and 172,595.04

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Solution

The fourth proportional to 315,826.12, 435,846.32 and 172,595.04 is: 238,184.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,826.12 : 435,846.32 = 172,595.04 : x
  2. Step 2: Convert to fraction form
    315,826.12/435,846.32 = 172,595.04/x
  3. Step 3: Cross multiply
    315,826.12x = 435,846.32 × 172,595.04
  4. Step 4: Simplify right side
    315,826.12x = 75,224,913,034.25
  5. Step 5: Solve for x
    x = 75,224,913,034.25/315,826.12
  6. Step 6: Final answer
    x = 238,184.58

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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.