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Finding the Fourth Proportional to 372,019.17, 555,502.13 and 361,930.12

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Solution

The fourth proportional to 372,019.17, 555,502.13 and 361,930.12 is: 540,437.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,019.17 : 555,502.13 = 361,930.12 : x
  2. Step 2: Convert to fraction form
    372,019.17/555,502.13 = 361,930.12/x
  3. Step 3: Cross multiply
    372,019.17x = 555,502.13 × 361,930.12
  4. Step 4: Simplify right side
    372,019.17x = 201,052,950,729.99
  5. Step 5: Solve for x
    x = 201,052,950,729.99/372,019.17
  6. Step 6: Final answer
    x = 540,437.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.