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Finding the Fourth Proportional to 255,880.58, 353,001.06 and 148,388.36

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Solution

The fourth proportional to 255,880.58, 353,001.06 and 148,388.36 is: 204,709.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,880.58 : 353,001.06 = 148,388.36 : x
  2. Step 2: Convert to fraction form
    255,880.58/353,001.06 = 148,388.36/x
  3. Step 3: Cross multiply
    255,880.58x = 353,001.06 × 148,388.36
  4. Step 4: Simplify right side
    255,880.58x = 52,381,248,371.66
  5. Step 5: Solve for x
    x = 52,381,248,371.66/255,880.58
  6. Step 6: Final answer
    x = 204,709.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.