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Finding the Fourth Proportional to 330,714.76, 495,751.38 and 130,968.76

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Solution

The fourth proportional to 330,714.76, 495,751.38 and 130,968.76 is: 196,326.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,714.76 : 495,751.38 = 130,968.76 : x
  2. Step 2: Convert to fraction form
    330,714.76/495,751.38 = 130,968.76/x
  3. Step 3: Cross multiply
    330,714.76x = 495,751.38 × 130,968.76
  4. Step 4: Simplify right side
    330,714.76x = 64,927,943,506.89
  5. Step 5: Solve for x
    x = 64,927,943,506.89/330,714.76
  6. Step 6: Final answer
    x = 196,326.11

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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.