Home / 274,445.29-378,662.50-158,130.28

Finding the Fourth Proportional to 274,445.29, 378,662.50 and 158,130.28

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Solution

The fourth proportional to 274,445.29, 378,662.50 and 158,130.28 is: 218,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,445.29 : 378,662.50 = 158,130.28 : x
  2. Step 2: Convert to fraction form
    274,445.29/378,662.50 = 158,130.28/x
  3. Step 3: Cross multiply
    274,445.29x = 378,662.50 × 158,130.28
  4. Step 4: Simplify right side
    274,445.29x = 59,878,004,802.03
  5. Step 5: Solve for x
    x = 59,878,004,802.03/274,445.29
  6. Step 6: Final answer
    x = 218,178.29

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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.