Home / 255,065.10-382,136.85-218,201.10

Finding the Fourth Proportional to 255,065.10, 382,136.85 and 218,201.10

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Solution

The fourth proportional to 255,065.10, 382,136.85 and 218,201.10 is: 326,907.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,065.10 : 382,136.85 = 218,201.10 : x
  2. Step 2: Convert to fraction form
    255,065.10/382,136.85 = 218,201.10/x
  3. Step 3: Cross multiply
    255,065.10x = 382,136.85 × 218,201.10
  4. Step 4: Simplify right side
    255,065.10x = 83,382,681,020.54
  5. Step 5: Solve for x
    x = 83,382,681,020.54/255,065.10
  6. Step 6: Final answer
    x = 326,907.45

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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.