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Finding the Fourth Proportional to 379,853.84, 524,165.64 and 210,045.44

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Solution

The fourth proportional to 379,853.84, 524,165.64 and 210,045.44 is: 289,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,853.84 : 524,165.64 = 210,045.44 : x
  2. Step 2: Convert to fraction form
    379,853.84/524,165.64 = 210,045.44/x
  3. Step 3: Cross multiply
    379,853.84x = 524,165.64 × 210,045.44
  4. Step 4: Simplify right side
    379,853.84x = 110,098,602,486.68
  5. Step 5: Solve for x
    x = 110,098,602,486.68/379,853.84
  6. Step 6: Final answer
    x = 289,844.65

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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.