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Finding the Fourth Proportional to 330,192.96, 495,009.64 and 130,654.12

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Solution

The fourth proportional to 330,192.96, 495,009.64 and 130,654.12 is: 195,870.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,192.96 : 495,009.64 = 130,654.12 : x
  2. Step 2: Convert to fraction form
    330,192.96/495,009.64 = 130,654.12/x
  3. Step 3: Cross multiply
    330,192.96x = 495,009.64 × 130,654.12
  4. Step 4: Simplify right side
    330,192.96x = 64,675,048,905.72
  5. Step 5: Solve for x
    x = 64,675,048,905.72/330,192.96
  6. Step 6: Final answer
    x = 195,870.47

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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.