Home / 331,293.20-457,068.04-216,638.96

Finding the Fourth Proportional to 331,293.20, 457,068.04 and 216,638.96

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Solution

The fourth proportional to 331,293.20, 457,068.04 and 216,638.96 is: 298,885.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,293.20 : 457,068.04 = 216,638.96 : x
  2. Step 2: Convert to fraction form
    331,293.20/457,068.04 = 216,638.96/x
  3. Step 3: Cross multiply
    331,293.20x = 457,068.04 × 216,638.96
  4. Step 4: Simplify right side
    331,293.20x = 99,018,744,834.84
  5. Step 5: Solve for x
    x = 99,018,744,834.84/331,293.20
  6. Step 6: Final answer
    x = 298,885.53

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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.