Home / 387,667.53-534,902.76-226,491.45

Finding the Fourth Proportional to 387,667.53, 534,902.76 and 226,491.45

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Solution

The fourth proportional to 387,667.53, 534,902.76 and 226,491.45 is: 312,512.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,667.53 : 534,902.76 = 226,491.45 : x
  2. Step 2: Convert to fraction form
    387,667.53/534,902.76 = 226,491.45/x
  3. Step 3: Cross multiply
    387,667.53x = 534,902.76 × 226,491.45
  4. Step 4: Simplify right side
    387,667.53x = 121,150,901,721.40
  5. Step 5: Solve for x
    x = 121,150,901,721.40/387,667.53
  6. Step 6: Final answer
    x = 312,512.38

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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.