Home / 401,031.57-553,386.77-231,232.89

Finding the Fourth Proportional to 401,031.57, 553,386.77 and 231,232.89

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Solution

The fourth proportional to 401,031.57, 553,386.77 and 231,232.89 is: 319,080.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,031.57 : 553,386.77 = 231,232.89 : x
  2. Step 2: Convert to fraction form
    401,031.57/553,386.77 = 231,232.89/x
  3. Step 3: Cross multiply
    401,031.57x = 553,386.77 × 231,232.89
  4. Step 4: Simplify right side
    401,031.57x = 127,961,220,958.70
  5. Step 5: Solve for x
    x = 127,961,220,958.70/401,031.57
  6. Step 6: Final answer
    x = 319,080.17

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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.