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Finding the Fourth Proportional to 310,558.10, 428,560.17 and 174,597.75

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Solution

The fourth proportional to 310,558.10, 428,560.17 and 174,597.75 is: 240,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,558.10 : 428,560.17 = 174,597.75 : x
  2. Step 2: Convert to fraction form
    310,558.10/428,560.17 = 174,597.75/x
  3. Step 3: Cross multiply
    310,558.10x = 428,560.17 × 174,597.75
  4. Step 4: Simplify right side
    310,558.10x = 74,825,641,421.62
  5. Step 5: Solve for x
    x = 74,825,641,421.62/310,558.10
  6. Step 6: Final answer
    x = 240,939.27

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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.