Home / 254,961.30-382,429.80-86,465.10

Finding the Fourth Proportional to 254,961.30, 382,429.80 and 86,465.10

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Solution

The fourth proportional to 254,961.30, 382,429.80 and 86,465.10 is: 129,693.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,961.30 : 382,429.80 = 86,465.10 : x
  2. Step 2: Convert to fraction form
    254,961.30/382,429.80 = 86,465.10/x
  3. Step 3: Cross multiply
    254,961.30x = 382,429.80 × 86,465.10
  4. Step 4: Simplify right side
    254,961.30x = 33,066,830,899.98
  5. Step 5: Solve for x
    x = 33,066,830,899.98/254,961.30
  6. Step 6: Final answer
    x = 129,693.53

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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.