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Finding the Fourth Proportional to 300,952.86, 415,395.99 and 187,708.38

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Solution

The fourth proportional to 300,952.86, 415,395.99 and 187,708.38 is: 259,088.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,952.86 : 415,395.99 = 187,708.38 : x
  2. Step 2: Convert to fraction form
    300,952.86/415,395.99 = 187,708.38/x
  3. Step 3: Cross multiply
    300,952.86x = 415,395.99 × 187,708.38
  4. Step 4: Simplify right side
    300,952.86x = 77,973,308,341.40
  5. Step 5: Solve for x
    x = 77,973,308,341.40/300,952.86
  6. Step 6: Final answer
    x = 259,088.11

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1.5x scale

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.