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Finding the Fourth Proportional to 330,091.38, 495,300.69 and 130,554.90

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Solution

The fourth proportional to 330,091.38, 495,300.69 and 130,554.90 is: 195,897.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,091.38 : 495,300.69 = 130,554.90 : x
  2. Step 2: Convert to fraction form
    330,091.38/495,300.69 = 130,554.90/x
  3. Step 3: Cross multiply
    330,091.38x = 495,300.69 × 130,554.90
  4. Step 4: Simplify right side
    330,091.38x = 64,663,932,052.88
  5. Step 5: Solve for x
    x = 64,663,932,052.88/330,091.38
  6. Step 6: Final answer
    x = 195,897.06

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1.5x scale

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.