Home / 211,421.24-316,509.78-141,126.20

Finding the Fourth Proportional to 211,421.24, 316,509.78 and 141,126.20

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Solution

The fourth proportional to 211,421.24, 316,509.78 and 141,126.20 is: 211,274.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,421.24 : 316,509.78 = 141,126.20 : x
  2. Step 2: Convert to fraction form
    211,421.24/316,509.78 = 141,126.20/x
  3. Step 3: Cross multiply
    211,421.24x = 316,509.78 × 141,126.20
  4. Step 4: Simplify right side
    211,421.24x = 44,667,822,514.24
  5. Step 5: Solve for x
    x = 44,667,822,514.24/211,421.24
  6. Step 6: Final answer
    x = 211,274.05

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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.