Home / 373,639.77-515,634.26-212,518.01

Finding the Fourth Proportional to 373,639.77, 515,634.26 and 212,518.01

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Solution

The fourth proportional to 373,639.77, 515,634.26 and 212,518.01 is: 293,281.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,639.77 : 515,634.26 = 212,518.01 : x
  2. Step 2: Convert to fraction form
    373,639.77/515,634.26 = 212,518.01/x
  3. Step 3: Cross multiply
    373,639.77x = 515,634.26 × 212,518.01
  4. Step 4: Simplify right side
    373,639.77x = 109,581,567,049.52
  5. Step 5: Solve for x
    x = 109,581,567,049.52/373,639.77
  6. Step 6: Final answer
    x = 293,281.33

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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.