Home / 331,257.60-457,228.80-298,598.40

Finding the Fourth Proportional to 331,257.60, 457,228.80 and 298,598.40

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Solution

The fourth proportional to 331,257.60, 457,228.80 and 298,598.40 is: 412,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,257.60 : 457,228.80 = 298,598.40 : x
  2. Step 2: Convert to fraction form
    331,257.60/457,228.80 = 298,598.40/x
  3. Step 3: Cross multiply
    331,257.60x = 457,228.80 × 298,598.40
  4. Step 4: Simplify right side
    331,257.60x = 136,527,788,113.92
  5. Step 5: Solve for x
    x = 136,527,788,113.92/331,257.60
  6. Step 6: Final answer
    x = 412,149.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.