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Finding the Fourth Proportional to 268,924.60, 403,386.90 and 251,428.60

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Solution

The fourth proportional to 268,924.60, 403,386.90 and 251,428.60 is: 377,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,924.60 : 403,386.90 = 251,428.60 : x
  2. Step 2: Convert to fraction form
    268,924.60/403,386.90 = 251,428.60/x
  3. Step 3: Cross multiply
    268,924.60x = 403,386.90 × 251,428.60
  4. Step 4: Simplify right side
    268,924.60x = 101,423,003,525.34
  5. Step 5: Solve for x
    x = 101,423,003,525.34/268,924.60
  6. Step 6: Final answer
    x = 377,142.90

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1.5x scale

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.