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Finding the Fourth Proportional to 398,966.48, 550,498.54 and 237,836.52

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Solution

The fourth proportional to 398,966.48, 550,498.54 and 237,836.52 is: 328,169.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,966.48 : 550,498.54 = 237,836.52 : x
  2. Step 2: Convert to fraction form
    398,966.48/550,498.54 = 237,836.52/x
  3. Step 3: Cross multiply
    398,966.48x = 550,498.54 × 237,836.52
  4. Step 4: Simplify right side
    398,966.48x = 130,928,657,018.68
  5. Step 5: Solve for x
    x = 130,928,657,018.68/398,966.48
  6. Step 6: Final answer
    x = 328,169.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.