Home / 330,103.30-495,318.98-130,430.20

Finding the Fourth Proportional to 330,103.30, 495,318.98 and 130,430.20

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Solution

The fourth proportional to 330,103.30, 495,318.98 and 130,430.20 is: 195,710.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,103.30 : 495,318.98 = 130,430.20 : x
  2. Step 2: Convert to fraction form
    330,103.30/495,318.98 = 130,430.20/x
  3. Step 3: Cross multiply
    330,103.30x = 495,318.98 × 130,430.20
  4. Step 4: Simplify right side
    330,103.30x = 64,604,553,625.20
  5. Step 5: Solve for x
    x = 64,604,553,625.20/330,103.30
  6. Step 6: Final answer
    x = 195,710.11

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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.