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Finding the Fourth Proportional to 215,403.10, 297,261.48 and 119,916.24

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Solution

The fourth proportional to 215,403.10, 297,261.48 and 119,916.24 is: 165,487.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,403.10 : 297,261.48 = 119,916.24 : x
  2. Step 2: Convert to fraction form
    215,403.10/297,261.48 = 119,916.24/x
  3. Step 3: Cross multiply
    215,403.10x = 297,261.48 × 119,916.24
  4. Step 4: Simplify right side
    215,403.10x = 35,646,478,978.44
  5. Step 5: Solve for x
    x = 35,646,478,978.44/215,403.10
  6. Step 6: Final answer
    x = 165,487.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.