Home / 274,186.32-378,385.68-153,332.64

Finding the Fourth Proportional to 274,186.32, 378,385.68 and 153,332.64

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Solution

The fourth proportional to 274,186.32, 378,385.68 and 153,332.64 is: 211,603.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,186.32 : 378,385.68 = 153,332.64 : x
  2. Step 2: Convert to fraction form
    274,186.32/378,385.68 = 153,332.64/x
  3. Step 3: Cross multiply
    274,186.32x = 378,385.68 × 153,332.64
  4. Step 4: Simplify right side
    274,186.32x = 58,018,875,252.60
  5. Step 5: Solve for x
    x = 58,018,875,252.60/274,186.32
  6. Step 6: Final answer
    x = 211,603.83

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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.