Home / 217,738.70-326,646.32-99,422.00

Finding the Fourth Proportional to 217,738.70, 326,646.32 and 99,422.00

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Solution

The fourth proportional to 217,738.70, 326,646.32 and 99,422.00 is: 149,150.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,738.70 : 326,646.32 = 99,422.00 : x
  2. Step 2: Convert to fraction form
    217,738.70/326,646.32 = 99,422.00/x
  3. Step 3: Cross multiply
    217,738.70x = 326,646.32 × 99,422.00
  4. Step 4: Simplify right side
    217,738.70x = 32,475,828,296.70
  5. Step 5: Solve for x
    x = 32,475,828,296.70/217,738.70
  6. Step 6: Final answer
    x = 149,150.47

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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.