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Finding the Fourth Proportional to 330,423.32, 495,799.62 and 130,887.51

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Solution

The fourth proportional to 330,423.32, 495,799.62 and 130,887.51 is: 196,396.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,423.32 : 495,799.62 = 130,887.51 : x
  2. Step 2: Convert to fraction form
    330,423.32/495,799.62 = 130,887.51/x
  3. Step 3: Cross multiply
    330,423.32x = 495,799.62 × 130,887.51
  4. Step 4: Simplify right side
    330,423.32x = 64,893,977,720.75
  5. Step 5: Solve for x
    x = 64,893,977,720.75/330,423.32
  6. Step 6: Final answer
    x = 196,396.49

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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.