Home / 461,429.20-692,143.80-212,111.20

Finding the Fourth Proportional to 461,429.20, 692,143.80 and 212,111.20

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Solution

The fourth proportional to 461,429.20, 692,143.80 and 212,111.20 is: 318,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,429.20 : 692,143.80 = 212,111.20 : x
  2. Step 2: Convert to fraction form
    461,429.20/692,143.80 = 212,111.20/x
  3. Step 3: Cross multiply
    461,429.20x = 692,143.80 × 212,111.20
  4. Step 4: Simplify right side
    461,429.20x = 146,811,451,990.56
  5. Step 5: Solve for x
    x = 146,811,451,990.56/461,429.20
  6. Step 6: Final answer
    x = 318,166.80

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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.