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Finding the Fourth Proportional to 506,246.72, 758,641.72 and 217,979.23

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Solution

The fourth proportional to 506,246.72, 758,641.72 and 217,979.23 is: 326,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,246.72 : 758,641.72 = 217,979.23 : x
  2. Step 2: Convert to fraction form
    506,246.72/758,641.72 = 217,979.23/x
  3. Step 3: Cross multiply
    506,246.72x = 758,641.72 × 217,979.23
  4. Step 4: Simplify right side
    506,246.72x = 165,368,133,088.37
  5. Step 5: Solve for x
    x = 165,368,133,088.37/506,246.72
  6. Step 6: Final answer
    x = 326,655.22

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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.