Home / 290,501.24-400,888.58-169,661.28

Finding the Fourth Proportional to 290,501.24, 400,888.58 and 169,661.28

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Solution

The fourth proportional to 290,501.24, 400,888.58 and 169,661.28 is: 234,130.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,501.24 : 400,888.58 = 169,661.28 : x
  2. Step 2: Convert to fraction form
    290,501.24/400,888.58 = 169,661.28/x
  3. Step 3: Cross multiply
    290,501.24x = 400,888.58 × 169,661.28
  4. Step 4: Simplify right side
    290,501.24x = 68,015,270,275.21
  5. Step 5: Solve for x
    x = 68,015,270,275.21/290,501.24
  6. Step 6: Final answer
    x = 234,130.74

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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.