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Finding the Fourth Proportional to 256,029.48, 384,044.16 and 69,040.92

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Solution

The fourth proportional to 256,029.48, 384,044.16 and 69,040.92 is: 103,561.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,029.48 : 384,044.16 = 69,040.92 : x
  2. Step 2: Convert to fraction form
    256,029.48/384,044.16 = 69,040.92/x
  3. Step 3: Cross multiply
    256,029.48x = 384,044.16 × 69,040.92
  4. Step 4: Simplify right side
    256,029.48x = 26,514,762,127.03
  5. Step 5: Solve for x
    x = 26,514,762,127.03/256,029.48
  6. Step 6: Final answer
    x = 103,561.36

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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.