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Finding the Fourth Proportional to 330,537.96, 495,609.84 and 130,887

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Solution

The fourth proportional to 330,537.96, 495,609.84 and 130,887 is: 196,252.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,537.96 : 495,609.84 = 130,887 : x
  2. Step 2: Convert to fraction form
    330,537.96/495,609.84 = 130,887/x
  3. Step 3: Cross multiply
    330,537.96x = 495,609.84 × 130,887
  4. Step 4: Simplify right side
    330,537.96x = 64,868,885,128.08
  5. Step 5: Solve for x
    x = 64,868,885,128.08/330,537.96
  6. Step 6: Final answer
    x = 196,252.45

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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.