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Finding the Fourth Proportional to 268,330.57, 402,492.98 and 68,649.37

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Solution

The fourth proportional to 268,330.57, 402,492.98 and 68,649.37 is: 102,973.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,330.57 : 402,492.98 = 68,649.37 : x
  2. Step 2: Convert to fraction form
    268,330.57/402,492.98 = 68,649.37/x
  3. Step 3: Cross multiply
    268,330.57x = 402,492.98 × 68,649.37
  4. Step 4: Simplify right side
    268,330.57x = 27,630,888,671.81
  5. Step 5: Solve for x
    x = 27,630,888,671.81/268,330.57
  6. Step 6: Final answer
    x = 102,973.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.