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Finding the Fourth Proportional to 258,603.60, 387,030.60 and 227,110.80

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Solution

The fourth proportional to 258,603.60, 387,030.60 and 227,110.80 is: 339,897.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,603.60 : 387,030.60 = 227,110.80 : x
  2. Step 2: Convert to fraction form
    258,603.60/387,030.60 = 227,110.80/x
  3. Step 3: Cross multiply
    258,603.60x = 387,030.60 × 227,110.80
  4. Step 4: Simplify right side
    258,603.60x = 87,898,829,190.48
  5. Step 5: Solve for x
    x = 87,898,829,190.48/258,603.60
  6. Step 6: Final answer
    x = 339,897.93

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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.