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Finding the Third Proportional to 534 and 785.50

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Solution

The third proportional to 534 and 785.50 is: 1,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    534 : 785.50 = 785.50 : x
  2. Step 2: Convert to fraction form
    534/785.50 = 785.50/x
  3. Step 3: Cross multiply
    534x = 785.50 × 785.50
  4. Step 4: Simplify right side
    534x = 617,010.25
  5. Step 5: Solve for x
    x = 617,010.25/534
  6. Step 6: Final answer
    x = 1,155.45

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.