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Finding the Fourth Proportional to 295,207.70, 442,155.45 and 228,431.30

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Solution

The fourth proportional to 295,207.70, 442,155.45 and 228,431.30 is: 342,139.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,207.70 : 442,155.45 = 228,431.30 : x
  2. Step 2: Convert to fraction form
    295,207.70/442,155.45 = 228,431.30/x
  3. Step 3: Cross multiply
    295,207.70x = 442,155.45 × 228,431.30
  4. Step 4: Simplify right side
    295,207.70x = 101,002,144,245.59
  5. Step 5: Solve for x
    x = 101,002,144,245.59/295,207.70
  6. Step 6: Final answer
    x = 342,139.26

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1.5x scale

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.