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Finding the Fourth Proportional to 560.59, 840.90 and 236.18

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Solution

The fourth proportional to 560.59, 840.90 and 236.18 is: 354.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.59 : 840.90 = 236.18 : x
  2. Step 2: Convert to fraction form
    560.59/840.90 = 236.18/x
  3. Step 3: Cross multiply
    560.59x = 840.90 × 236.18
  4. Step 4: Simplify right side
    560.59x = 198,603.76
  5. Step 5: Solve for x
    x = 198,603.76/560.59
  6. Step 6: Final answer
    x = 354.28

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Double scale
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Similar ratio
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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.