Home / 312,326.40-431,010.48-169,087.62

Finding the Fourth Proportional to 312,326.40, 431,010.48 and 169,087.62

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Solution

The fourth proportional to 312,326.40, 431,010.48 and 169,087.62 is: 233,340.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,326.40 : 431,010.48 = 169,087.62 : x
  2. Step 2: Convert to fraction form
    312,326.40/431,010.48 = 169,087.62/x
  3. Step 3: Cross multiply
    312,326.40x = 431,010.48 × 169,087.62
  4. Step 4: Simplify right side
    312,326.40x = 72,878,536,258.26
  5. Step 5: Solve for x
    x = 72,878,536,258.26/312,326.40
  6. Step 6: Final answer
    x = 233,340.94

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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.