Home / 401,313.63-553,830.27-240,137.79

Finding the Fourth Proportional to 401,313.63, 553,830.27 and 240,137.79

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Solution

The fourth proportional to 401,313.63, 553,830.27 and 240,137.79 is: 331,400.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,313.63 : 553,830.27 = 240,137.79 : x
  2. Step 2: Convert to fraction form
    401,313.63/553,830.27 = 240,137.79/x
  3. Step 3: Cross multiply
    401,313.63x = 553,830.27 × 240,137.79
  4. Step 4: Simplify right side
    401,313.63x = 132,995,577,072.90
  5. Step 5: Solve for x
    x = 132,995,577,072.90/401,313.63
  6. Step 6: Final answer
    x = 331,400.60

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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.