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Finding the Fourth Proportional to 560.15, 840.27 and 149.29

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Solution

The fourth proportional to 560.15, 840.27 and 149.29 is: 223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.15 : 840.27 = 149.29 : x
  2. Step 2: Convert to fraction form
    560.15/840.27 = 149.29/x
  3. Step 3: Cross multiply
    560.15x = 840.27 × 149.29
  4. Step 4: Simplify right side
    560.15x = 125,441.81
  5. Step 5: Solve for x
    x = 125,441.81/560.15
  6. Step 6: Final answer
    x = 223.95

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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.