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Finding the Fourth Proportional to 379,841.76, 524,189.52 and 210,087.36

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Solution

The fourth proportional to 379,841.76, 524,189.52 and 210,087.36 is: 289,924.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,841.76 : 524,189.52 = 210,087.36 : x
  2. Step 2: Convert to fraction form
    379,841.76/524,189.52 = 210,087.36/x
  3. Step 3: Cross multiply
    379,841.76x = 524,189.52 × 210,087.36
  4. Step 4: Simplify right side
    379,841.76x = 110,125,592,396.47
  5. Step 5: Solve for x
    x = 110,125,592,396.47/379,841.76
  6. Step 6: Final answer
    x = 289,924.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.