Home / 316,856.28-437,193.60-187,835.40

Finding the Fourth Proportional to 316,856.28, 437,193.60 and 187,835.40

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Solution

The fourth proportional to 316,856.28, 437,193.60 and 187,835.40 is: 259,172.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,856.28 : 437,193.60 = 187,835.40 : x
  2. Step 2: Convert to fraction form
    316,856.28/437,193.60 = 187,835.40/x
  3. Step 3: Cross multiply
    316,856.28x = 437,193.60 × 187,835.40
  4. Step 4: Simplify right side
    316,856.28x = 82,120,434,733.44
  5. Step 5: Solve for x
    x = 82,120,434,733.44/316,856.28
  6. Step 6: Final answer
    x = 259,172.50

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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.