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Finding the Fourth Proportional to 376,383.82, 564,242.95 and 288,031.72

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Solution

The fourth proportional to 376,383.82, 564,242.95 and 288,031.72 is: 431,792.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,383.82 : 564,242.95 = 288,031.72 : x
  2. Step 2: Convert to fraction form
    376,383.82/564,242.95 = 288,031.72/x
  3. Step 3: Cross multiply
    376,383.82x = 564,242.95 × 288,031.72
  4. Step 4: Simplify right side
    376,383.82x = 162,519,867,386.37
  5. Step 5: Solve for x
    x = 162,519,867,386.37/376,383.82
  6. Step 6: Final answer
    x = 431,792.92

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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.