Home / 318,643.73-439,738.26-173,459.18

Finding the Fourth Proportional to 318,643.73, 439,738.26 and 173,459.18

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Solution

The fourth proportional to 318,643.73, 439,738.26 and 173,459.18 is: 239,379.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,643.73 : 439,738.26 = 173,459.18 : x
  2. Step 2: Convert to fraction form
    318,643.73/439,738.26 = 173,459.18/x
  3. Step 3: Cross multiply
    318,643.73x = 439,738.26 × 173,459.18
  4. Step 4: Simplify right side
    318,643.73x = 76,276,637,994.23
  5. Step 5: Solve for x
    x = 76,276,637,994.23/318,643.73
  6. Step 6: Final answer
    x = 239,379.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.