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Finding the Fourth Proportional to 227,400.50, 313,815.10 and 125,430.40

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Solution

The fourth proportional to 227,400.50, 313,815.10 and 125,430.40 is: 173,095.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,400.50 : 313,815.10 = 125,430.40 : x
  2. Step 2: Convert to fraction form
    227,400.50/313,815.10 = 125,430.40/x
  3. Step 3: Cross multiply
    227,400.50x = 313,815.10 × 125,430.40
  4. Step 4: Simplify right side
    227,400.50x = 39,361,953,519.04
  5. Step 5: Solve for x
    x = 39,361,953,519.04/227,400.50
  6. Step 6: Final answer
    x = 173,095.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.