Home / 258,788.02-357,123.80-145,610.50

Finding the Fourth Proportional to 258,788.02, 357,123.80 and 145,610.50

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Solution

The fourth proportional to 258,788.02, 357,123.80 and 145,610.50 is: 200,940.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,788.02 : 357,123.80 = 145,610.50 : x
  2. Step 2: Convert to fraction form
    258,788.02/357,123.80 = 145,610.50/x
  3. Step 3: Cross multiply
    258,788.02x = 357,123.80 × 145,610.50
  4. Step 4: Simplify right side
    258,788.02x = 52,000,975,079.90
  5. Step 5: Solve for x
    x = 52,000,975,079.90/258,788.02
  6. Step 6: Final answer
    x = 200,940.43

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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.