Home / 400,941.50-553,297.64-219,653.17

Finding the Fourth Proportional to 400,941.50, 553,297.64 and 219,653.17

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Solution

The fourth proportional to 400,941.50, 553,297.64 and 219,653.17 is: 303,120.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,941.50 : 553,297.64 = 219,653.17 : x
  2. Step 2: Convert to fraction form
    400,941.50/553,297.64 = 219,653.17/x
  3. Step 3: Cross multiply
    400,941.50x = 553,297.64 × 219,653.17
  4. Step 4: Simplify right side
    400,941.50x = 121,533,578,098.01
  5. Step 5: Solve for x
    x = 121,533,578,098.01/400,941.50
  6. Step 6: Final answer
    x = 303,120.48

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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.