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Finding the Fourth Proportional to 447,315.29, 617,301.19 and 243,368.65

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Solution

The fourth proportional to 447,315.29, 617,301.19 and 243,368.65 is: 335,852.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,315.29 : 617,301.19 = 243,368.65 : x
  2. Step 2: Convert to fraction form
    447,315.29/617,301.19 = 243,368.65/x
  3. Step 3: Cross multiply
    447,315.29x = 617,301.19 × 243,368.65
  4. Step 4: Simplify right side
    447,315.29x = 150,231,756,960.58
  5. Step 5: Solve for x
    x = 150,231,756,960.58/447,315.29
  6. Step 6: Final answer
    x = 335,852.05

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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.