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Finding the Fourth Proportional to 247,809.86, 371,728.86 and 70,302.94

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Solution

The fourth proportional to 247,809.86, 371,728.86 and 70,302.94 is: 105,458.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,809.86 : 371,728.86 = 70,302.94 : x
  2. Step 2: Convert to fraction form
    247,809.86/371,728.86 = 70,302.94/x
  3. Step 3: Cross multiply
    247,809.86x = 371,728.86 × 70,302.94
  4. Step 4: Simplify right side
    247,809.86x = 26,133,631,740.85
  5. Step 5: Solve for x
    x = 26,133,631,740.85/247,809.86
  6. Step 6: Final answer
    x = 105,458.40

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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.