Home / 380,331.72-524,865.83-208,256.94

Finding the Fourth Proportional to 380,331.72, 524,865.83 and 208,256.94

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Solution

The fourth proportional to 380,331.72, 524,865.83 and 208,256.94 is: 287,398.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,331.72 : 524,865.83 = 208,256.94 : x
  2. Step 2: Convert to fraction form
    380,331.72/524,865.83 = 208,256.94/x
  3. Step 3: Cross multiply
    380,331.72x = 524,865.83 × 208,256.94
  4. Step 4: Simplify right side
    380,331.72x = 109,306,950,625.08
  5. Step 5: Solve for x
    x = 109,306,950,625.08/380,331.72
  6. Step 6: Final answer
    x = 287,398.99

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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.