Home / 389,108.20-583,208.70-178,767.40

Finding the Fourth Proportional to 389,108.20, 583,208.70 and 178,767.40

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Solution

The fourth proportional to 389,108.20, 583,208.70 and 178,767.40 is: 267,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,108.20 : 583,208.70 = 178,767.40 : x
  2. Step 2: Convert to fraction form
    389,108.20/583,208.70 = 178,767.40/x
  3. Step 3: Cross multiply
    389,108.20x = 583,208.70 × 178,767.40
  4. Step 4: Simplify right side
    389,108.20x = 104,258,702,956.38
  5. Step 5: Solve for x
    x = 104,258,702,956.38/389,108.20
  6. Step 6: Final answer
    x = 267,942.70

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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.