Home / 215,048.60-322,463.55-126,329.30

Finding the Fourth Proportional to 215,048.60, 322,463.55 and 126,329.30

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Solution

The fourth proportional to 215,048.60, 322,463.55 and 126,329.30 is: 189,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,048.60 : 322,463.55 = 126,329.30 : x
  2. Step 2: Convert to fraction form
    215,048.60/322,463.55 = 126,329.30/x
  3. Step 3: Cross multiply
    215,048.60x = 322,463.55 × 126,329.30
  4. Step 4: Simplify right side
    215,048.60x = 40,736,594,547.02
  5. Step 5: Solve for x
    x = 40,736,594,547.02/215,048.60
  6. Step 6: Final answer
    x = 189,429.71

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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.