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Finding the Fourth Proportional to 287,130.44, 396,277.64 and 164,670.80

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Solution

The fourth proportional to 287,130.44, 396,277.64 and 164,670.80 is: 227,267.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,130.44 : 396,277.64 = 164,670.80 : x
  2. Step 2: Convert to fraction form
    287,130.44/396,277.64 = 164,670.80/x
  3. Step 3: Cross multiply
    287,130.44x = 396,277.64 × 164,670.80
  4. Step 4: Simplify right side
    287,130.44x = 65,255,356,000.91
  5. Step 5: Solve for x
    x = 65,255,356,000.91/287,130.44
  6. Step 6: Final answer
    x = 227,267.29

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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.