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Finding the Fourth Proportional to 331,411.80, 497,117.70 and 303,418.20

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Solution

The fourth proportional to 331,411.80, 497,117.70 and 303,418.20 is: 455,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,411.80 : 497,117.70 = 303,418.20 : x
  2. Step 2: Convert to fraction form
    331,411.80/497,117.70 = 303,418.20/x
  3. Step 3: Cross multiply
    331,411.80x = 497,117.70 × 303,418.20
  4. Step 4: Simplify right side
    331,411.80x = 150,834,557,722.14
  5. Step 5: Solve for x
    x = 150,834,557,722.14/331,411.80
  6. Step 6: Final answer
    x = 455,127.30

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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.