Home / 257,016.12-385,561.02-79,537.02

Finding the Fourth Proportional to 257,016.12, 385,561.02 and 79,537.02

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Solution

The fourth proportional to 257,016.12, 385,561.02 and 79,537.02 is: 119,316.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,016.12 : 385,561.02 = 79,537.02 : x
  2. Step 2: Convert to fraction form
    257,016.12/385,561.02 = 79,537.02/x
  3. Step 3: Cross multiply
    257,016.12x = 385,561.02 × 79,537.02
  4. Step 4: Simplify right side
    257,016.12x = 30,666,374,558.96
  5. Step 5: Solve for x
    x = 30,666,374,558.96/257,016.12
  6. Step 6: Final answer
    x = 119,316.93

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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.