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Finding the Fourth Proportional to 272,170, 375,607.40 and 151,313.28

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Solution

The fourth proportional to 272,170, 375,607.40 and 151,313.28 is: 208,819.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,170 : 375,607.40 = 151,313.28 : x
  2. Step 2: Convert to fraction form
    272,170/375,607.40 = 151,313.28/x
  3. Step 3: Cross multiply
    272,170x = 375,607.40 × 151,313.28
  4. Step 4: Simplify right side
    272,170x = 56,834,387,686.27
  5. Step 5: Solve for x
    x = 56,834,387,686.27/272,170
  6. Step 6: Final answer
    x = 208,819.44

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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.