Home / 254,515.12-381,772.56-77,018.08

Finding the Fourth Proportional to 254,515.12, 381,772.56 and 77,018.08

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Solution

The fourth proportional to 254,515.12, 381,772.56 and 77,018.08 is: 115,527.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,515.12 : 381,772.56 = 77,018.08 : x
  2. Step 2: Convert to fraction form
    254,515.12/381,772.56 = 77,018.08/x
  3. Step 3: Cross multiply
    254,515.12x = 381,772.56 × 77,018.08
  4. Step 4: Simplify right side
    254,515.12x = 29,403,389,567.88
  5. Step 5: Solve for x
    x = 29,403,389,567.88/254,515.12
  6. Step 6: Final answer
    x = 115,527.08

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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.