Home / 315,826.34-435,833.16-172,587.26

Finding the Fourth Proportional to 315,826.34, 435,833.16 and 172,587.26

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Solution

The fourth proportional to 315,826.34, 435,833.16 and 172,587.26 is: 238,166.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,826.34 : 435,833.16 = 172,587.26 : x
  2. Step 2: Convert to fraction form
    315,826.34/435,833.16 = 172,587.26/x
  3. Step 3: Cross multiply
    315,826.34x = 435,833.16 × 172,587.26
  4. Step 4: Simplify right side
    315,826.34x = 75,219,250,901.54
  5. Step 5: Solve for x
    x = 75,219,250,901.54/315,826.34
  6. Step 6: Final answer
    x = 238,166.49

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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.