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Finding the Fourth Proportional to 228,430.26, 342,689.10 and 70,630.92

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Solution

The fourth proportional to 228,430.26, 342,689.10 and 70,630.92 is: 105,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,430.26 : 342,689.10 = 70,630.92 : x
  2. Step 2: Convert to fraction form
    228,430.26/342,689.10 = 70,630.92/x
  3. Step 3: Cross multiply
    228,430.26x = 342,689.10 × 70,630.92
  4. Step 4: Simplify right side
    228,430.26x = 24,204,446,406.97
  5. Step 5: Solve for x
    x = 24,204,446,406.97/228,430.26
  6. Step 6: Final answer
    x = 105,959.90

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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.