Home / 290,018.20-400,273.21-169,159.48

Finding the Fourth Proportional to 290,018.20, 400,273.21 and 169,159.48

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Solution

The fourth proportional to 290,018.20, 400,273.21 and 169,159.48 is: 233,468.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,018.20 : 400,273.21 = 169,159.48 : x
  2. Step 2: Convert to fraction form
    290,018.20/400,273.21 = 169,159.48/x
  3. Step 3: Cross multiply
    290,018.20x = 400,273.21 × 169,159.48
  4. Step 4: Simplify right side
    290,018.20x = 67,710,005,995.77
  5. Step 5: Solve for x
    x = 67,710,005,995.77/290,018.20
  6. Step 6: Final answer
    x = 233,468.13

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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.