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Finding the Fourth Proportional to 245,945.90, 368,932.03 and 77,479.40

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Solution

The fourth proportional to 245,945.90, 368,932.03 and 77,479.40 is: 116,223.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,945.90 : 368,932.03 = 77,479.40 : x
  2. Step 2: Convert to fraction form
    245,945.90/368,932.03 = 77,479.40/x
  3. Step 3: Cross multiply
    245,945.90x = 368,932.03 × 77,479.40
  4. Step 4: Simplify right side
    245,945.90x = 28,584,633,053.81
  5. Step 5: Solve for x
    x = 28,584,633,053.81/245,945.90
  6. Step 6: Final answer
    x = 116,223.26

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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.