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Finding the Fourth Proportional to 316,371.60, 436,525.29 and 187,350.60

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Solution

The fourth proportional to 316,371.60, 436,525.29 and 187,350.60 is: 258,503.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,371.60 : 436,525.29 = 187,350.60 : x
  2. Step 2: Convert to fraction form
    316,371.60/436,525.29 = 187,350.60/x
  3. Step 3: Cross multiply
    316,371.60x = 436,525.29 × 187,350.60
  4. Step 4: Simplify right side
    316,371.60x = 81,783,274,996.67
  5. Step 5: Solve for x
    x = 81,783,274,996.67/316,371.60
  6. Step 6: Final answer
    x = 258,503.84

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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.