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Finding the Fourth Proportional to 376,826.51, 520,020.46 and 207,071.57

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Solution

The fourth proportional to 376,826.51, 520,020.46 and 207,071.57 is: 285,758.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,826.51 : 520,020.46 = 207,071.57 : x
  2. Step 2: Convert to fraction form
    376,826.51/520,020.46 = 207,071.57/x
  3. Step 3: Cross multiply
    376,826.51x = 520,020.46 × 207,071.57
  4. Step 4: Simplify right side
    376,826.51x = 107,681,453,084.32
  5. Step 5: Solve for x
    x = 107,681,453,084.32/376,826.51
  6. Step 6: Final answer
    x = 285,758.70

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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.