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Finding the Fourth Proportional to 275,590.78, 380,356.84 and 168,223.08

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Solution

The fourth proportional to 275,590.78, 380,356.84 and 168,223.08 is: 232,173.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,590.78 : 380,356.84 = 168,223.08 : x
  2. Step 2: Convert to fraction form
    275,590.78/380,356.84 = 168,223.08/x
  3. Step 3: Cross multiply
    275,590.78x = 380,356.84 × 168,223.08
  4. Step 4: Simplify right side
    275,590.78x = 63,984,799,123.87
  5. Step 5: Solve for x
    x = 63,984,799,123.87/275,590.78
  6. Step 6: Final answer
    x = 232,173.22

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1.5x scale

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.