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Finding the Fourth Proportional to 387,252.50, 580,741.29 and 113,622.34

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Solution

The fourth proportional to 387,252.50, 580,741.29 and 113,622.34 is: 170,393.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,252.50 : 580,741.29 = 113,622.34 : x
  2. Step 2: Convert to fraction form
    387,252.50/580,741.29 = 113,622.34/x
  3. Step 3: Cross multiply
    387,252.50x = 580,741.29 × 113,622.34
  4. Step 4: Simplify right side
    387,252.50x = 65,985,184,304.42
  5. Step 5: Solve for x
    x = 65,985,184,304.42/387,252.50
  6. Step 6: Final answer
    x = 170,393.18

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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.