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Finding the Fourth Proportional to 310,316.82, 428,237.59 and 174,350.69

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Solution

The fourth proportional to 310,316.82, 428,237.59 and 174,350.69 is: 240,604.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,316.82 : 428,237.59 = 174,350.69 : x
  2. Step 2: Convert to fraction form
    310,316.82/428,237.59 = 174,350.69/x
  3. Step 3: Cross multiply
    310,316.82x = 428,237.59 × 174,350.69
  4. Step 4: Simplify right side
    310,316.82x = 74,663,519,380.97
  5. Step 5: Solve for x
    x = 74,663,519,380.97/310,316.82
  6. Step 6: Final answer
    x = 240,604.16

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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.