Home / 258,868.40-357,262.50-151,431.62

Finding the Fourth Proportional to 258,868.40, 357,262.50 and 151,431.62

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Solution

The fourth proportional to 258,868.40, 357,262.50 and 151,431.62 is: 208,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,868.40 : 357,262.50 = 151,431.62 : x
  2. Step 2: Convert to fraction form
    258,868.40/357,262.50 = 151,431.62/x
  3. Step 3: Cross multiply
    258,868.40x = 357,262.50 × 151,431.62
  4. Step 4: Simplify right side
    258,868.40x = 54,100,839,140.25
  5. Step 5: Solve for x
    x = 54,100,839,140.25/258,868.40
  6. Step 6: Final answer
    x = 208,989.74

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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.