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Finding the Fourth Proportional to 316,430.60, 436,675.37 and 171,236.37

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Solution

The fourth proportional to 316,430.60, 436,675.37 and 171,236.37 is: 236,306.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,430.60 : 436,675.37 = 171,236.37 : x
  2. Step 2: Convert to fraction form
    316,430.60/436,675.37 = 171,236.37/x
  3. Step 3: Cross multiply
    316,430.60x = 436,675.37 × 171,236.37
  4. Step 4: Simplify right side
    316,430.60x = 74,774,704,371.03
  5. Step 5: Solve for x
    x = 74,774,704,371.03/316,430.60
  6. Step 6: Final answer
    x = 236,306.81

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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.