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Finding the Fourth Proportional to 330,130.80, 495,196.20 and 108,514.80

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Solution

The fourth proportional to 330,130.80, 495,196.20 and 108,514.80 is: 162,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,130.80 : 495,196.20 = 108,514.80 : x
  2. Step 2: Convert to fraction form
    330,130.80/495,196.20 = 108,514.80/x
  3. Step 3: Cross multiply
    330,130.80x = 495,196.20 × 108,514.80
  4. Step 4: Simplify right side
    330,130.80x = 53,736,116,603.76
  5. Step 5: Solve for x
    x = 53,736,116,603.76/330,130.80
  6. Step 6: Final answer
    x = 162,772.20

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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.