Home / 215,017.92-322,584.96-74,784.32

Finding the Fourth Proportional to 215,017.92, 322,584.96 and 74,784.32

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Solution

The fourth proportional to 215,017.92, 322,584.96 and 74,784.32 is: 112,196.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,017.92 : 322,584.96 = 74,784.32 : x
  2. Step 2: Convert to fraction form
    215,017.92/322,584.96 = 74,784.32/x
  3. Step 3: Cross multiply
    215,017.92x = 322,584.96 × 74,784.32
  4. Step 4: Simplify right side
    215,017.92x = 24,124,296,875.83
  5. Step 5: Solve for x
    x = 24,124,296,875.83/215,017.92
  6. Step 6: Final answer
    x = 112,196.68

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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.