Home / 373,566.34-515,519.10-212,421.40

Finding the Fourth Proportional to 373,566.34, 515,519.10 and 212,421.40

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Solution

The fourth proportional to 373,566.34, 515,519.10 and 212,421.40 is: 293,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,566.34 : 515,519.10 = 212,421.40 : x
  2. Step 2: Convert to fraction form
    373,566.34/515,519.10 = 212,421.40/x
  3. Step 3: Cross multiply
    373,566.34x = 515,519.10 × 212,421.40
  4. Step 4: Simplify right side
    373,566.34x = 109,507,288,948.74
  5. Step 5: Solve for x
    x = 109,507,288,948.74/373,566.34
  6. Step 6: Final answer
    x = 293,140.14

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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.