Home / 257,390.96-385,991.64-88,868.24

Finding the Fourth Proportional to 257,390.96, 385,991.64 and 88,868.24

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Solution

The fourth proportional to 257,390.96, 385,991.64 and 88,868.24 is: 133,269.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,390.96 : 385,991.64 = 88,868.24 : x
  2. Step 2: Convert to fraction form
    257,390.96/385,991.64 = 88,868.24/x
  3. Step 3: Cross multiply
    257,390.96x = 385,991.64 × 88,868.24
  4. Step 4: Simplify right side
    257,390.96x = 34,302,397,701.51
  5. Step 5: Solve for x
    x = 34,302,397,701.51/257,390.96
  6. Step 6: Final answer
    x = 133,269.63

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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.