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Finding the Fourth Proportional to 225,021.67, 310,529.12 and 126,897.11

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Solution

The fourth proportional to 225,021.67, 310,529.12 and 126,897.11 is: 175,117.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,021.67 : 310,529.12 = 126,897.11 : x
  2. Step 2: Convert to fraction form
    225,021.67/310,529.12 = 126,897.11/x
  3. Step 3: Cross multiply
    225,021.67x = 310,529.12 × 126,897.11
  4. Step 4: Simplify right side
    225,021.67x = 39,405,247,197.01
  5. Step 5: Solve for x
    x = 39,405,247,197.01/225,021.67
  6. Step 6: Final answer
    x = 175,117.57

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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.