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Finding the Fourth Proportional to 560.41, 840.69 and 149.56

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Solution

The fourth proportional to 560.41, 840.69 and 149.56 is: 224.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.41 : 840.69 = 149.56 : x
  2. Step 2: Convert to fraction form
    560.41/840.69 = 149.56/x
  3. Step 3: Cross multiply
    560.41x = 840.69 × 149.56
  4. Step 4: Simplify right side
    560.41x = 125,731.49
  5. Step 5: Solve for x
    x = 125,731.49/560.41
  6. Step 6: Final answer
    x = 224.36

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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.