Home / 401,212.71-553,730.24-248,300.17

Finding the Fourth Proportional to 401,212.71, 553,730.24 and 248,300.17

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Solution

The fourth proportional to 401,212.71, 553,730.24 and 248,300.17 is: 342,689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,212.71 : 553,730.24 = 248,300.17 : x
  2. Step 2: Convert to fraction form
    401,212.71/553,730.24 = 248,300.17/x
  3. Step 3: Cross multiply
    401,212.71x = 553,730.24 × 248,300.17
  4. Step 4: Simplify right side
    401,212.71x = 137,491,311,962.57
  5. Step 5: Solve for x
    x = 137,491,311,962.57/401,212.71
  6. Step 6: Final answer
    x = 342,689.32

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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.