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Finding the Fourth Proportional to 310,636.98, 465,272.48 and 256,717.87

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Solution

The fourth proportional to 310,636.98, 465,272.48 and 256,717.87 is: 384,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,636.98 : 465,272.48 = 256,717.87 : x
  2. Step 2: Convert to fraction form
    310,636.98/465,272.48 = 256,717.87/x
  3. Step 3: Cross multiply
    310,636.98x = 465,272.48 × 256,717.87
  4. Step 4: Simplify right side
    310,636.98x = 119,443,760,035.22
  5. Step 5: Solve for x
    x = 119,443,760,035.22/310,636.98
  6. Step 6: Final answer
    x = 384,512.37

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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.