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Finding the Fourth Proportional to 228,312.10, 342,470.50 and 101,958.78

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Solution

The fourth proportional to 228,312.10, 342,470.50 and 101,958.78 is: 152,939.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,312.10 : 342,470.50 = 101,958.78 : x
  2. Step 2: Convert to fraction form
    228,312.10/342,470.50 = 101,958.78/x
  3. Step 3: Cross multiply
    228,312.10x = 342,470.50 × 101,958.78
  4. Step 4: Simplify right side
    228,312.10x = 34,917,874,365.99
  5. Step 5: Solve for x
    x = 34,917,874,365.99/228,312.10
  6. Step 6: Final answer
    x = 152,939.22

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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.