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Finding the Fourth Proportional to 286,468.84, 429,003.42 and 247,277.80

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Solution

The fourth proportional to 286,468.84, 429,003.42 and 247,277.80 is: 370,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,468.84 : 429,003.42 = 247,277.80 : x
  2. Step 2: Convert to fraction form
    286,468.84/429,003.42 = 247,277.80/x
  3. Step 3: Cross multiply
    286,468.84x = 429,003.42 × 247,277.80
  4. Step 4: Simplify right side
    286,468.84x = 106,083,021,890.08
  5. Step 5: Solve for x
    x = 106,083,021,890.08/286,468.84
  6. Step 6: Final answer
    x = 370,312.60

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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.