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Finding the Fourth Proportional to 605,017.56, 907,314.68 and 178,440.20

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Solution

The fourth proportional to 605,017.56, 907,314.68 and 178,440.20 is: 267,597.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,017.56 : 907,314.68 = 178,440.20 : x
  2. Step 2: Convert to fraction form
    605,017.56/907,314.68 = 178,440.20/x
  3. Step 3: Cross multiply
    605,017.56x = 907,314.68 × 178,440.20
  4. Step 4: Simplify right side
    605,017.56x = 161,901,412,962.14
  5. Step 5: Solve for x
    x = 161,901,412,962.14/605,017.56
  6. Step 6: Final answer
    x = 267,597.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.