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Finding the Fourth Proportional to 330,194.16, 495,011.48 and 130,655.34

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Solution

The fourth proportional to 330,194.16, 495,011.48 and 130,655.34 is: 195,872.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,194.16 : 495,011.48 = 130,655.34 : x
  2. Step 2: Convert to fraction form
    330,194.16/495,011.48 = 130,655.34/x
  3. Step 3: Cross multiply
    330,194.16x = 495,011.48 × 130,655.34
  4. Step 4: Simplify right side
    330,194.16x = 64,675,892,570.03
  5. Step 5: Solve for x
    x = 64,675,892,570.03/330,194.16
  6. Step 6: Final answer
    x = 195,872.31

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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.