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Finding the Fourth Proportional to 277,590.65, 383,720.69 and 247,672.49

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Solution

The fourth proportional to 277,590.65, 383,720.69 and 247,672.49 is: 342,364.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,590.65 : 383,720.69 = 247,672.49 : x
  2. Step 2: Convert to fraction form
    277,590.65/383,720.69 = 247,672.49/x
  3. Step 3: Cross multiply
    277,590.65x = 383,720.69 × 247,672.49
  4. Step 4: Simplify right side
    277,590.65x = 95,037,057,457.40
  5. Step 5: Solve for x
    x = 95,037,057,457.40/277,590.65
  6. Step 6: Final answer
    x = 342,364.05

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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.