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Finding the Fourth Proportional to 268,404.90, 402,607.35 and 179,931.30

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Solution

The fourth proportional to 268,404.90, 402,607.35 and 179,931.30 is: 269,896.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,404.90 : 402,607.35 = 179,931.30 : x
  2. Step 2: Convert to fraction form
    268,404.90/402,607.35 = 179,931.30/x
  3. Step 3: Cross multiply
    268,404.90x = 402,607.35 × 179,931.30
  4. Step 4: Simplify right side
    268,404.90x = 72,441,663,875.06
  5. Step 5: Solve for x
    x = 72,441,663,875.06/268,404.90
  6. Step 6: Final answer
    x = 269,896.95

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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.