Home / 318,619.74-439,634.52-203,810.46

Finding the Fourth Proportional to 318,619.74, 439,634.52 and 203,810.46

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Solution

The fourth proportional to 318,619.74, 439,634.52 and 203,810.46 is: 281,219.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,619.74 : 439,634.52 = 203,810.46 : x
  2. Step 2: Convert to fraction form
    318,619.74/439,634.52 = 203,810.46/x
  3. Step 3: Cross multiply
    318,619.74x = 439,634.52 × 203,810.46
  4. Step 4: Simplify right side
    318,619.74x = 89,602,113,753.08
  5. Step 5: Solve for x
    x = 89,602,113,753.08/318,619.74
  6. Step 6: Final answer
    x = 281,219.59

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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.