Home / 402,209.15-555,024.08-220,885.79

Finding the Fourth Proportional to 402,209.15, 555,024.08 and 220,885.79

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Solution

The fourth proportional to 402,209.15, 555,024.08 and 220,885.79 is: 304,808.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,209.15 : 555,024.08 = 220,885.79 : x
  2. Step 2: Convert to fraction form
    402,209.15/555,024.08 = 220,885.79/x
  3. Step 3: Cross multiply
    402,209.15x = 555,024.08 × 220,885.79
  4. Step 4: Simplify right side
    402,209.15x = 122,596,930,156.92
  5. Step 5: Solve for x
    x = 122,596,930,156.92/402,209.15
  6. Step 6: Final answer
    x = 304,808.91

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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.