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Finding the Fourth Proportional to 279,801.24, 386,124.44 and 152,476.80

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Solution

The fourth proportional to 279,801.24, 386,124.44 and 152,476.80 is: 210,417.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,801.24 : 386,124.44 = 152,476.80 : x
  2. Step 2: Convert to fraction form
    279,801.24/386,124.44 = 152,476.80/x
  3. Step 3: Cross multiply
    279,801.24x = 386,124.44 × 152,476.80
  4. Step 4: Simplify right side
    279,801.24x = 58,875,018,250.61
  5. Step 5: Solve for x
    x = 58,875,018,250.61/279,801.24
  6. Step 6: Final answer
    x = 210,417.29

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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.