Home / 316,345.89-436,556.15-171,151.21

Finding the Fourth Proportional to 316,345.89, 436,556.15 and 171,151.21

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Solution

The fourth proportional to 316,345.89, 436,556.15 and 171,151.21 is: 236,188.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,345.89 : 436,556.15 = 171,151.21 : x
  2. Step 2: Convert to fraction form
    316,345.89/436,556.15 = 171,151.21/x
  3. Step 3: Cross multiply
    316,345.89x = 436,556.15 × 171,151.21
  4. Step 4: Simplify right side
    316,345.89x = 74,717,110,266.90
  5. Step 5: Solve for x
    x = 74,717,110,266.90/316,345.89
  6. Step 6: Final answer
    x = 236,188.02

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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.