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Finding the Fourth Proportional to 243,445.96, 336,049.16 and 217,907.26

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Solution

The fourth proportional to 243,445.96, 336,049.16 and 217,907.26 is: 300,795.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,445.96 : 336,049.16 = 217,907.26 : x
  2. Step 2: Convert to fraction form
    243,445.96/336,049.16 = 217,907.26/x
  3. Step 3: Cross multiply
    243,445.96x = 336,049.16 × 217,907.26
  4. Step 4: Simplify right side
    243,445.96x = 73,227,551,641.52
  5. Step 5: Solve for x
    x = 73,227,551,641.52/243,445.96
  6. Step 6: Final answer
    x = 300,795.93

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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.