Home / 259,396.19-357,905.79-157,419.35

Finding the Fourth Proportional to 259,396.19, 357,905.79 and 157,419.35

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Solution

The fourth proportional to 259,396.19, 357,905.79 and 157,419.35 is: 217,201.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,396.19 : 357,905.79 = 157,419.35 : x
  2. Step 2: Convert to fraction form
    259,396.19/357,905.79 = 157,419.35/x
  3. Step 3: Cross multiply
    259,396.19x = 357,905.79 × 157,419.35
  4. Step 4: Simplify right side
    259,396.19x = 56,341,296,823.04
  5. Step 5: Solve for x
    x = 56,341,296,823.04/259,396.19
  6. Step 6: Final answer
    x = 217,201.71

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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.