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Finding the Fourth Proportional to 286,617.60, 429,926.40 and 251,625.60

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Solution

The fourth proportional to 286,617.60, 429,926.40 and 251,625.60 is: 377,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,617.60 : 429,926.40 = 251,625.60 : x
  2. Step 2: Convert to fraction form
    286,617.60/429,926.40 = 251,625.60/x
  3. Step 3: Cross multiply
    286,617.60x = 429,926.40 × 251,625.60
  4. Step 4: Simplify right side
    286,617.60x = 108,180,488,355.84
  5. Step 5: Solve for x
    x = 108,180,488,355.84/286,617.60
  6. Step 6: Final answer
    x = 377,438.40

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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.