Home / 384,828.48-531,086.88-215,076.16

Finding the Fourth Proportional to 384,828.48, 531,086.88 and 215,076.16

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Solution

The fourth proportional to 384,828.48, 531,086.88 and 215,076.16 is: 296,818.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,828.48 : 531,086.88 = 215,076.16 : x
  2. Step 2: Convert to fraction form
    384,828.48/531,086.88 = 215,076.16/x
  3. Step 3: Cross multiply
    384,828.48x = 531,086.88 × 215,076.16
  4. Step 4: Simplify right side
    384,828.48x = 114,224,126,776.78
  5. Step 5: Solve for x
    x = 114,224,126,776.78/384,828.48
  6. Step 6: Final answer
    x = 296,818.28

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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.