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Finding the Fourth Proportional to 286,467.84, 429,001.92 and 247,276.80

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Solution

The fourth proportional to 286,467.84, 429,001.92 and 247,276.80 is: 370,311.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,467.84 : 429,001.92 = 247,276.80 : x
  2. Step 2: Convert to fraction form
    286,467.84/429,001.92 = 247,276.80/x
  3. Step 3: Cross multiply
    286,467.84x = 429,001.92 × 247,276.80
  4. Step 4: Simplify right side
    286,467.84x = 106,082,221,971.46
  5. Step 5: Solve for x
    x = 106,082,221,971.46/286,467.84
  6. Step 6: Final answer
    x = 370,311.10

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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.