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Finding the Fourth Proportional to 287,267.52, 430,832.06 and 127,254.98

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Solution

The fourth proportional to 287,267.52, 430,832.06 and 127,254.98 is: 190,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,267.52 : 430,832.06 = 127,254.98 : x
  2. Step 2: Convert to fraction form
    287,267.52/430,832.06 = 127,254.98/x
  3. Step 3: Cross multiply
    287,267.52x = 430,832.06 × 127,254.98
  4. Step 4: Simplify right side
    287,267.52x = 54,825,522,388.22
  5. Step 5: Solve for x
    x = 54,825,522,388.22/287,267.52
  6. Step 6: Final answer
    x = 190,851.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.