Home / 255,724.40-383,525.01-78,232.95

Finding the Fourth Proportional to 255,724.40, 383,525.01 and 78,232.95

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Solution

The fourth proportional to 255,724.40, 383,525.01 and 78,232.95 is: 117,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,724.40 : 383,525.01 = 78,232.95 : x
  2. Step 2: Convert to fraction form
    255,724.40/383,525.01 = 78,232.95/x
  3. Step 3: Cross multiply
    255,724.40x = 383,525.01 × 78,232.95
  4. Step 4: Simplify right side
    255,724.40x = 30,004,292,931.08
  5. Step 5: Solve for x
    x = 30,004,292,931.08/255,724.40
  6. Step 6: Final answer
    x = 117,330.58

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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.