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Finding the Fourth Proportional to 254,699.73, 382,027.59 and 86,216.45

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Solution

The fourth proportional to 254,699.73, 382,027.59 and 86,216.45 is: 129,317.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,699.73 : 382,027.59 = 86,216.45 : x
  2. Step 2: Convert to fraction form
    254,699.73/382,027.59 = 86,216.45/x
  3. Step 3: Cross multiply
    254,699.73x = 382,027.59 × 86,216.45
  4. Step 4: Simplify right side
    254,699.73x = 32,937,060,701.72
  5. Step 5: Solve for x
    x = 32,937,060,701.72/254,699.73
  6. Step 6: Final answer
    x = 129,317.22

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1.5x scale

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.