Home / 255,088.58-382,619.20-77,581.75

Finding the Fourth Proportional to 255,088.58, 382,619.20 and 77,581.75

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Solution

The fourth proportional to 255,088.58, 382,619.20 and 77,581.75 is: 116,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,088.58 : 382,619.20 = 77,581.75 : x
  2. Step 2: Convert to fraction form
    255,088.58/382,619.20 = 77,581.75/x
  3. Step 3: Cross multiply
    255,088.58x = 382,619.20 × 77,581.75
  4. Step 4: Simplify right side
    255,088.58x = 29,684,267,119.60
  5. Step 5: Solve for x
    x = 29,684,267,119.60/255,088.58
  6. Step 6: Final answer
    x = 116,368.47

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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.