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Finding the Fourth Proportional to 262,564, 391,797.12 and 234,289.60

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Solution

The fourth proportional to 262,564, 391,797.12 and 234,289.60 is: 349,606.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,564 : 391,797.12 = 234,289.60 : x
  2. Step 2: Convert to fraction form
    262,564/391,797.12 = 234,289.60/x
  3. Step 3: Cross multiply
    262,564x = 391,797.12 × 234,289.60
  4. Step 4: Simplify right side
    262,564x = 91,793,990,525.95
  5. Step 5: Solve for x
    x = 91,793,990,525.95/262,564
  6. Step 6: Final answer
    x = 349,606.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.