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Finding the Fourth Proportional to 348,017.40, 522,026.10 and 330,046.20

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Solution

The fourth proportional to 348,017.40, 522,026.10 and 330,046.20 is: 495,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,017.40 : 522,026.10 = 330,046.20 : x
  2. Step 2: Convert to fraction form
    348,017.40/522,026.10 = 330,046.20/x
  3. Step 3: Cross multiply
    348,017.40x = 522,026.10 × 330,046.20
  4. Step 4: Simplify right side
    348,017.40x = 172,292,730,605.82
  5. Step 5: Solve for x
    x = 172,292,730,605.82/348,017.40
  6. Step 6: Final answer
    x = 495,069.30

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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.