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Finding the Fourth Proportional to 348,053.40, 522,080.10 and 330,082.20

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Solution

The fourth proportional to 348,053.40, 522,080.10 and 330,082.20 is: 495,123.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,053.40 : 522,080.10 = 330,082.20 : x
  2. Step 2: Convert to fraction form
    348,053.40/522,080.10 = 330,082.20/x
  3. Step 3: Cross multiply
    348,053.40x = 522,080.10 × 330,082.20
  4. Step 4: Simplify right side
    348,053.40x = 172,329,347,984.22
  5. Step 5: Solve for x
    x = 172,329,347,984.22/348,053.40
  6. Step 6: Final answer
    x = 495,123.30

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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.