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Finding the Fourth Proportional to 500,246.66, 750,142.94 and 215,802.71

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Solution

The fourth proportional to 500,246.66, 750,142.94 and 215,802.71 is: 323,606.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,246.66 : 750,142.94 = 215,802.71 : x
  2. Step 2: Convert to fraction form
    500,246.66/750,142.94 = 215,802.71/x
  3. Step 3: Cross multiply
    500,246.66x = 750,142.94 × 215,802.71
  4. Step 4: Simplify right side
    500,246.66x = 161,882,879,339.37
  5. Step 5: Solve for x
    x = 161,882,879,339.37/500,246.66
  6. Step 6: Final answer
    x = 323,606.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.