Home / 389,078.12-583,677.52-164,439.50

Finding the Fourth Proportional to 389,078.12, 583,677.52 and 164,439.50

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Solution

The fourth proportional to 389,078.12, 583,677.52 and 164,439.50 is: 246,684.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,078.12 : 583,677.52 = 164,439.50 : x
  2. Step 2: Convert to fraction form
    389,078.12/583,677.52 = 164,439.50/x
  3. Step 3: Cross multiply
    389,078.12x = 583,677.52 × 164,439.50
  4. Step 4: Simplify right side
    389,078.12x = 95,979,639,966.23
  5. Step 5: Solve for x
    x = 95,979,639,966.23/389,078.12
  6. Step 6: Final answer
    x = 246,684.76

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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.