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Finding the Fourth Proportional to 525.04, 787.62 and 308.62

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Solution

The fourth proportional to 525.04, 787.62 and 308.62 is: 462.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.04 : 787.62 = 308.62 : x
  2. Step 2: Convert to fraction form
    525.04/787.62 = 308.62/x
  3. Step 3: Cross multiply
    525.04x = 787.62 × 308.62
  4. Step 4: Simplify right side
    525.04x = 243,075.28
  5. Step 5: Solve for x
    x = 243,075.28/525.04
  6. Step 6: Final answer
    x = 462.97

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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.