Home / 384,383.06-576,381.02-128,124.88

Finding the Fourth Proportional to 384,383.06, 576,381.02 and 128,124.88

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Solution

The fourth proportional to 384,383.06, 576,381.02 and 128,124.88 is: 192,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,383.06 : 576,381.02 = 128,124.88 : x
  2. Step 2: Convert to fraction form
    384,383.06/576,381.02 = 128,124.88/x
  3. Step 3: Cross multiply
    384,383.06x = 576,381.02 × 128,124.88
  4. Step 4: Simplify right side
    384,383.06x = 73,848,749,021.78
  5. Step 5: Solve for x
    x = 73,848,749,021.78/384,383.06
  6. Step 6: Final answer
    x = 192,122.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.