Home / 312,341.06-431,030.94-169,101.20

Finding the Fourth Proportional to 312,341.06, 431,030.94 and 169,101.20

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Solution

The fourth proportional to 312,341.06, 431,030.94 and 169,101.20 is: 233,359.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,341.06 : 431,030.94 = 169,101.20 : x
  2. Step 2: Convert to fraction form
    312,341.06/431,030.94 = 169,101.20/x
  3. Step 3: Cross multiply
    312,341.06x = 431,030.94 × 169,101.20
  4. Step 4: Simplify right side
    312,341.06x = 72,887,849,191.13
  5. Step 5: Solve for x
    x = 72,887,849,191.13/312,341.06
  6. Step 6: Final answer
    x = 233,359.81

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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.