Home / 331,888.20-496,520.10-288,002.40

Finding the Fourth Proportional to 331,888.20, 496,520.10 and 288,002.40

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Solution

The fourth proportional to 331,888.20, 496,520.10 and 288,002.40 is: 430,864.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,888.20 : 496,520.10 = 288,002.40 : x
  2. Step 2: Convert to fraction form
    331,888.20/496,520.10 = 288,002.40/x
  3. Step 3: Cross multiply
    331,888.20x = 496,520.10 × 288,002.40
  4. Step 4: Simplify right side
    331,888.20x = 142,998,980,448.24
  5. Step 5: Solve for x
    x = 142,998,980,448.24/331,888.20
  6. Step 6: Final answer
    x = 430,864.91

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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.