Home / 255,215.28-382,880.07-77,736.18

Finding the Fourth Proportional to 255,215.28, 382,880.07 and 77,736.18

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Solution

The fourth proportional to 255,215.28, 382,880.07 and 77,736.18 is: 116,621.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,215.28 : 382,880.07 = 77,736.18 : x
  2. Step 2: Convert to fraction form
    255,215.28/382,880.07 = 77,736.18/x
  3. Step 3: Cross multiply
    255,215.28x = 382,880.07 × 77,736.18
  4. Step 4: Simplify right side
    255,215.28x = 29,763,634,039.93
  5. Step 5: Solve for x
    x = 29,763,634,039.93/255,215.28
  6. Step 6: Final answer
    x = 116,621.68

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1.5x scale

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.