Home / 386,306.05-533,100.67-216,540.17

Finding the Fourth Proportional to 386,306.05, 533,100.67 and 216,540.17

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Solution

The fourth proportional to 386,306.05, 533,100.67 and 216,540.17 is: 298,824.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,306.05 : 533,100.67 = 216,540.17 : x
  2. Step 2: Convert to fraction form
    386,306.05/533,100.67 = 216,540.17/x
  3. Step 3: Cross multiply
    386,306.05x = 533,100.67 × 216,540.17
  4. Step 4: Simplify right side
    386,306.05x = 115,437,710,500.32
  5. Step 5: Solve for x
    x = 115,437,710,500.32/386,306.05
  6. Step 6: Final answer
    x = 298,824.50

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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.