Home / 274,228.16-378,405.60-153,356.96

Finding the Fourth Proportional to 274,228.16, 378,405.60 and 153,356.96

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Solution

The fourth proportional to 274,228.16, 378,405.60 and 153,356.96 is: 211,616.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,228.16 : 378,405.60 = 153,356.96 : x
  2. Step 2: Convert to fraction form
    274,228.16/378,405.60 = 153,356.96/x
  3. Step 3: Cross multiply
    274,228.16x = 378,405.60 × 153,356.96
  4. Step 4: Simplify right side
    274,228.16x = 58,031,132,462.98
  5. Step 5: Solve for x
    x = 58,031,132,462.98/274,228.16
  6. Step 6: Final answer
    x = 211,616.24

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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.