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Finding the Fourth Proportional to 484,170, 668,154.60 and 272,202

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Solution

The fourth proportional to 484,170, 668,154.60 and 272,202 is: 375,638.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,170 : 668,154.60 = 272,202 : x
  2. Step 2: Convert to fraction form
    484,170/668,154.60 = 272,202/x
  3. Step 3: Cross multiply
    484,170x = 668,154.60 × 272,202
  4. Step 4: Simplify right side
    484,170x = 181,873,018,429.20
  5. Step 5: Solve for x
    x = 181,873,018,429.20/484,170
  6. Step 6: Final answer
    x = 375,638.76

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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.