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Finding the Fourth Proportional to 391,202.04, 586,803.03 and 213,612.17

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Solution

The fourth proportional to 391,202.04, 586,803.03 and 213,612.17 is: 320,418.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,202.04 : 586,803.03 = 213,612.17 : x
  2. Step 2: Convert to fraction form
    391,202.04/586,803.03 = 213,612.17/x
  3. Step 3: Cross multiply
    391,202.04x = 586,803.03 × 213,612.17
  4. Step 4: Simplify right side
    391,202.04x = 125,348,268,600.88
  5. Step 5: Solve for x
    x = 125,348,268,600.88/391,202.04
  6. Step 6: Final answer
    x = 320,418.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.