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Finding the Fourth Proportional to 525.07, 787.59 and 251.00

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Solution

The fourth proportional to 525.07, 787.59 and 251.00 is: 376.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.07 : 787.59 = 251.00 : x
  2. Step 2: Convert to fraction form
    525.07/787.59 = 251.00/x
  3. Step 3: Cross multiply
    525.07x = 787.59 × 251.00
  4. Step 4: Simplify right side
    525.07x = 197,681.15
  5. Step 5: Solve for x
    x = 197,681.15/525.07
  6. Step 6: Final answer
    x = 376.49

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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.