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Finding the Fourth Proportional to 353,617.36, 488,002.52 and 217,729.68

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Solution

The fourth proportional to 353,617.36, 488,002.52 and 217,729.68 is: 300,473.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,617.36 : 488,002.52 = 217,729.68 : x
  2. Step 2: Convert to fraction form
    353,617.36/488,002.52 = 217,729.68/x
  3. Step 3: Cross multiply
    353,617.36x = 488,002.52 × 217,729.68
  4. Step 4: Simplify right side
    353,617.36x = 106,252,632,518.79
  5. Step 5: Solve for x
    x = 106,252,632,518.79/353,617.36
  6. Step 6: Final answer
    x = 300,473.46

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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.