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Finding the Fourth Proportional to 386,528.52, 579,783.28 and 149,871.27

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Solution

The fourth proportional to 386,528.52, 579,783.28 and 149,871.27 is: 224,803.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,528.52 : 579,783.28 = 149,871.27 : x
  2. Step 2: Convert to fraction form
    386,528.52/579,783.28 = 149,871.27/x
  3. Step 3: Cross multiply
    386,528.52x = 579,783.28 × 149,871.27
  4. Step 4: Simplify right side
    386,528.52x = 86,892,856,498.37
  5. Step 5: Solve for x
    x = 86,892,856,498.37/386,528.52
  6. Step 6: Final answer
    x = 224,803.22

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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.