Home / 257,964.66-356,013.60-143,265.42

Finding the Fourth Proportional to 257,964.66, 356,013.60 and 143,265.42

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Solution

The fourth proportional to 257,964.66, 356,013.60 and 143,265.42 is: 197,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,964.66 : 356,013.60 = 143,265.42 : x
  2. Step 2: Convert to fraction form
    257,964.66/356,013.60 = 143,265.42/x
  3. Step 3: Cross multiply
    257,964.66x = 356,013.60 × 143,265.42
  4. Step 4: Simplify right side
    257,964.66x = 51,004,437,929.71
  5. Step 5: Solve for x
    x = 51,004,437,929.71/257,964.66
  6. Step 6: Final answer
    x = 197,718.70

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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.