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Finding the Fourth Proportional to 501,670.40, 752,620.51 and 217,408.66

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Solution

The fourth proportional to 501,670.40, 752,620.51 and 217,408.66 is: 326,162.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,670.40 : 752,620.51 = 217,408.66 : x
  2. Step 2: Convert to fraction form
    501,670.40/752,620.51 = 217,408.66/x
  3. Step 3: Cross multiply
    501,670.40x = 752,620.51 × 217,408.66
  4. Step 4: Simplify right side
    501,670.40x = 163,626,214,957.83
  5. Step 5: Solve for x
    x = 163,626,214,957.83/501,670.40
  6. Step 6: Final answer
    x = 326,162.79

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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.