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Finding the Fourth Proportional to 376,838.40, 520,031.10 and 207,068.88

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Solution

The fourth proportional to 376,838.40, 520,031.10 and 207,068.88 is: 285,751.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,838.40 : 520,031.10 = 207,068.88 : x
  2. Step 2: Convert to fraction form
    376,838.40/520,031.10 = 207,068.88/x
  3. Step 3: Cross multiply
    376,838.40x = 520,031.10 × 207,068.88
  4. Step 4: Simplify right side
    376,838.40x = 107,682,257,442.17
  5. Step 5: Solve for x
    x = 107,682,257,442.17/376,838.40
  6. Step 6: Final answer
    x = 285,751.82

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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.