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Finding the Fourth Proportional to 310,563.56, 428,575.11 and 174,598.10

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Solution

The fourth proportional to 310,563.56, 428,575.11 and 174,598.10 is: 240,943.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,563.56 : 428,575.11 = 174,598.10 : x
  2. Step 2: Convert to fraction form
    310,563.56/428,575.11 = 174,598.10/x
  3. Step 3: Cross multiply
    310,563.56x = 428,575.11 × 174,598.10
  4. Step 4: Simplify right side
    310,563.56x = 74,828,397,770.42
  5. Step 5: Solve for x
    x = 74,828,397,770.42/310,563.56
  6. Step 6: Final answer
    x = 240,943.91

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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.