Home / 255,448.92-382,986.12-86,923.95

Finding the Fourth Proportional to 255,448.92, 382,986.12 and 86,923.95

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Solution

The fourth proportional to 255,448.92, 382,986.12 and 86,923.95 is: 130,322.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,448.92 : 382,986.12 = 86,923.95 : x
  2. Step 2: Convert to fraction form
    255,448.92/382,986.12 = 86,923.95/x
  3. Step 3: Cross multiply
    255,448.92x = 382,986.12 × 86,923.95
  4. Step 4: Simplify right side
    255,448.92x = 33,290,666,345.57
  5. Step 5: Solve for x
    x = 33,290,666,345.57/255,448.92
  6. Step 6: Final answer
    x = 130,322.20

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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.