Home / 266,305.63-367,512.70-153,128.38

Finding the Fourth Proportional to 266,305.63, 367,512.70 and 153,128.38

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Solution

The fourth proportional to 266,305.63, 367,512.70 and 153,128.38 is: 211,323.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,305.63 : 367,512.70 = 153,128.38 : x
  2. Step 2: Convert to fraction form
    266,305.63/367,512.70 = 153,128.38/x
  3. Step 3: Cross multiply
    266,305.63x = 367,512.70 × 153,128.38
  4. Step 4: Simplify right side
    266,305.63x = 56,276,622,542.86
  5. Step 5: Solve for x
    x = 56,276,622,542.86/266,305.63
  6. Step 6: Final answer
    x = 211,323.45

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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.