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Finding the Fourth Proportional to 376,902, 520,124.76 and 207,147.06

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Solution

The fourth proportional to 376,902, 520,124.76 and 207,147.06 is: 285,862.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,902 : 520,124.76 = 207,147.06 : x
  2. Step 2: Convert to fraction form
    376,902/520,124.76 = 207,147.06/x
  3. Step 3: Cross multiply
    376,902x = 520,124.76 × 207,147.06
  4. Step 4: Simplify right side
    376,902x = 107,742,314,867.21
  5. Step 5: Solve for x
    x = 107,742,314,867.21/376,902
  6. Step 6: Final answer
    x = 285,862.94

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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.