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Finding the Fourth Proportional to 358,701.28, 494,889.28 and 231,461.44

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Solution

The fourth proportional to 358,701.28, 494,889.28 and 231,461.44 is: 319,340.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,701.28 : 494,889.28 = 231,461.44 : x
  2. Step 2: Convert to fraction form
    358,701.28/494,889.28 = 231,461.44/x
  3. Step 3: Cross multiply
    358,701.28x = 494,889.28 × 231,461.44
  4. Step 4: Simplify right side
    358,701.28x = 114,547,785,389.36
  5. Step 5: Solve for x
    x = 114,547,785,389.36/358,701.28
  6. Step 6: Final answer
    x = 319,340.33

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1.5x scale

Why These Related Problems?

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