Home / 254,339.40-381,569.85-76,848.15

Finding the Fourth Proportional to 254,339.40, 381,569.85 and 76,848.15

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Solution

The fourth proportional to 254,339.40, 381,569.85 and 76,848.15 is: 115,290.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,339.40 : 381,569.85 = 76,848.15 : x
  2. Step 2: Convert to fraction form
    254,339.40/381,569.85 = 76,848.15/x
  3. Step 3: Cross multiply
    254,339.40x = 381,569.85 × 76,848.15
  4. Step 4: Simplify right side
    254,339.40x = 29,322,937,068.28
  5. Step 5: Solve for x
    x = 29,322,937,068.28/254,339.40
  6. Step 6: Final answer
    x = 115,290.58

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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.