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Finding the Fourth Proportional to 376,854.24, 520,061.76 and 207,091.20

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Solution

The fourth proportional to 376,854.24, 520,061.76 and 207,091.20 is: 285,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,854.24 : 520,061.76 = 207,091.20 : x
  2. Step 2: Convert to fraction form
    376,854.24/520,061.76 = 207,091.20/x
  3. Step 3: Cross multiply
    376,854.24x = 520,061.76 × 207,091.20
  4. Step 4: Simplify right side
    376,854.24x = 107,700,213,952.51
  5. Step 5: Solve for x
    x = 107,700,213,952.51/376,854.24
  6. Step 6: Final answer
    x = 285,787.45

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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.