Home / 379,423.77-523,634.65-216,087.18

Finding the Fourth Proportional to 379,423.77, 523,634.65 and 216,087.18

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Solution

The fourth proportional to 379,423.77, 523,634.65 and 216,087.18 is: 298,217.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,423.77 : 523,634.65 = 216,087.18 : x
  2. Step 2: Convert to fraction form
    379,423.77/523,634.65 = 216,087.18/x
  3. Step 3: Cross multiply
    379,423.77x = 523,634.65 × 216,087.18
  4. Step 4: Simplify right side
    379,423.77x = 113,150,737,507.69
  5. Step 5: Solve for x
    x = 113,150,737,507.69/379,423.77
  6. Step 6: Final answer
    x = 298,217.31

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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.