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Finding the Fourth Proportional to 313,237.92, 432,271.56 and 169,999.20

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Solution

The fourth proportional to 313,237.92, 432,271.56 and 169,999.20 is: 234,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,237.92 : 432,271.56 = 169,999.20 : x
  2. Step 2: Convert to fraction form
    313,237.92/432,271.56 = 169,999.20/x
  3. Step 3: Cross multiply
    313,237.92x = 432,271.56 × 169,999.20
  4. Step 4: Simplify right side
    313,237.92x = 73,485,819,382.75
  5. Step 5: Solve for x
    x = 73,485,819,382.75/313,237.92
  6. Step 6: Final answer
    x = 234,600.65

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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.