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Finding the Fourth Proportional to 261,601.36, 391,869.44 and 239,804.24

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Solution

The fourth proportional to 261,601.36, 391,869.44 and 239,804.24 is: 359,218.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,601.36 : 391,869.44 = 239,804.24 : x
  2. Step 2: Convert to fraction form
    261,601.36/391,869.44 = 239,804.24/x
  3. Step 3: Cross multiply
    261,601.36x = 391,869.44 × 239,804.24
  4. Step 4: Simplify right side
    261,601.36x = 93,971,953,238.43
  5. Step 5: Solve for x
    x = 93,971,953,238.43/261,601.36
  6. Step 6: Final answer
    x = 359,218.14

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1.5x scale

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.