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Finding the Fourth Proportional to 560.71, 840.85 and 195.40

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Solution

The fourth proportional to 560.71, 840.85 and 195.40 is: 293.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.71 : 840.85 = 195.40 : x
  2. Step 2: Convert to fraction form
    560.71/840.85 = 195.40/x
  3. Step 3: Cross multiply
    560.71x = 840.85 × 195.40
  4. Step 4: Simplify right side
    560.71x = 164,299.50
  5. Step 5: Solve for x
    x = 164,299.50/560.71
  6. Step 6: Final answer
    x = 293.02

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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.