Home / 373,566.07-515,518.77-212,421.12

Finding the Fourth Proportional to 373,566.07, 515,518.77 and 212,421.12

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Solution

The fourth proportional to 373,566.07, 515,518.77 and 212,421.12 is: 293,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,566.07 : 515,518.77 = 212,421.12 : x
  2. Step 2: Convert to fraction form
    373,566.07/515,518.77 = 212,421.12/x
  3. Step 3: Cross multiply
    373,566.07x = 515,518.77 × 212,421.12
  4. Step 4: Simplify right side
    373,566.07x = 109,507,074,504.42
  5. Step 5: Solve for x
    x = 109,507,074,504.42/373,566.07
  6. Step 6: Final answer
    x = 293,139.78

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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.