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Finding the Fourth Proportional to 331,477.80, 497,216.70 and 144,853.80

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Solution

The fourth proportional to 331,477.80, 497,216.70 and 144,853.80 is: 217,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,477.80 : 497,216.70 = 144,853.80 : x
  2. Step 2: Convert to fraction form
    331,477.80/497,216.70 = 144,853.80/x
  3. Step 3: Cross multiply
    331,477.80x = 497,216.70 × 144,853.80
  4. Step 4: Simplify right side
    331,477.80x = 72,023,728,418.46
  5. Step 5: Solve for x
    x = 72,023,728,418.46/331,477.80
  6. Step 6: Final answer
    x = 217,280.70

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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.