Home / 257,020.29-385,556.25-88,518.42

Finding the Fourth Proportional to 257,020.29, 385,556.25 and 88,518.42

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Solution

The fourth proportional to 257,020.29, 385,556.25 and 88,518.42 is: 132,786.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,020.29 : 385,556.25 = 88,518.42 : x
  2. Step 2: Convert to fraction form
    257,020.29/385,556.25 = 88,518.42/x
  3. Step 3: Cross multiply
    257,020.29x = 385,556.25 × 88,518.42
  4. Step 4: Simplify right side
    257,020.29x = 34,128,830,403.07
  5. Step 5: Solve for x
    x = 34,128,830,403.07/257,020.29
  6. Step 6: Final answer
    x = 132,786.52

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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.