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Finding the Fourth Proportional to 268,483.02, 402,473.01 and 90,865.68

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Solution

The fourth proportional to 268,483.02, 402,473.01 and 90,865.68 is: 136,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,483.02 : 402,473.01 = 90,865.68 : x
  2. Step 2: Convert to fraction form
    268,483.02/402,473.01 = 90,865.68/x
  3. Step 3: Cross multiply
    268,483.02x = 402,473.01 × 90,865.68
  4. Step 4: Simplify right side
    268,483.02x = 36,570,983,735.30
  5. Step 5: Solve for x
    x = 36,570,983,735.30/268,483.02
  6. Step 6: Final answer
    x = 136,213.40

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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.