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Finding the Fourth Proportional to 316,437.66, 436,682.37 and 171,243.33

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Solution

The fourth proportional to 316,437.66, 436,682.37 and 171,243.33 is: 236,314.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,437.66 : 436,682.37 = 171,243.33 : x
  2. Step 2: Convert to fraction form
    316,437.66/436,682.37 = 171,243.33/x
  3. Step 3: Cross multiply
    316,437.66x = 436,682.37 × 171,243.33
  4. Step 4: Simplify right side
    316,437.66x = 74,778,943,191.09
  5. Step 5: Solve for x
    x = 74,778,943,191.09/316,437.66
  6. Step 6: Final answer
    x = 236,314.93

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1.5x scale

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.