Home / 215,405.38-297,247.78-118,590.38

Finding the Fourth Proportional to 215,405.38, 297,247.78 and 118,590.38

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Solution

The fourth proportional to 215,405.38, 297,247.78 and 118,590.38 is: 163,648.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,405.38 : 297,247.78 = 118,590.38 : x
  2. Step 2: Convert to fraction form
    215,405.38/297,247.78 = 118,590.38/x
  3. Step 3: Cross multiply
    215,405.38x = 297,247.78 × 118,590.38
  4. Step 4: Simplify right side
    215,405.38x = 35,250,726,293.96
  5. Step 5: Solve for x
    x = 35,250,726,293.96/215,405.38
  6. Step 6: Final answer
    x = 163,648.31

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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.