Home / 290,040.21-400,165.76-169,095.91

Finding the Fourth Proportional to 290,040.21, 400,165.76 and 169,095.91

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Solution

The fourth proportional to 290,040.21, 400,165.76 and 169,095.91 is: 233,300.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,040.21 : 400,165.76 = 169,095.91 : x
  2. Step 2: Convert to fraction form
    290,040.21/400,165.76 = 169,095.91/x
  3. Step 3: Cross multiply
    290,040.21x = 400,165.76 × 169,095.91
  4. Step 4: Simplify right side
    290,040.21x = 67,666,393,338.04
  5. Step 5: Solve for x
    x = 67,666,393,338.04/290,040.21
  6. Step 6: Final answer
    x = 233,300.04

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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.