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Finding the Fourth Proportional to 279,496.78, 417,957.57 and 207,585.59

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Solution

The fourth proportional to 279,496.78, 417,957.57 and 207,585.59 is: 310,422.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,496.78 : 417,957.57 = 207,585.59 : x
  2. Step 2: Convert to fraction form
    279,496.78/417,957.57 = 207,585.59/x
  3. Step 3: Cross multiply
    279,496.78x = 417,957.57 × 207,585.59
  4. Step 4: Simplify right side
    279,496.78x = 86,761,966,673.63
  5. Step 5: Solve for x
    x = 86,761,966,673.63/279,496.78
  6. Step 6: Final answer
    x = 310,422.06

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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.