Home / 476,143.96-657,078.30-272,199.40

Finding the Fourth Proportional to 476,143.96, 657,078.30 and 272,199.40

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Solution

The fourth proportional to 476,143.96, 657,078.30 and 272,199.40 is: 375,634.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,143.96 : 657,078.30 = 272,199.40 : x
  2. Step 2: Convert to fraction form
    476,143.96/657,078.30 = 272,199.40/x
  3. Step 3: Cross multiply
    476,143.96x = 657,078.30 × 272,199.40
  4. Step 4: Simplify right side
    476,143.96x = 178,856,319,013.02
  5. Step 5: Solve for x
    x = 178,856,319,013.02/476,143.96
  6. Step 6: Final answer
    x = 375,634.96

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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.