Home / 290,016.42-400,220.91-169,148.22

Finding the Fourth Proportional to 290,016.42, 400,220.91 and 169,148.22

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Solution

The fourth proportional to 290,016.42, 400,220.91 and 169,148.22 is: 233,423.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,016.42 : 400,220.91 = 169,148.22 : x
  2. Step 2: Convert to fraction form
    290,016.42/400,220.91 = 169,148.22/x
  3. Step 3: Cross multiply
    290,016.42x = 400,220.91 × 169,148.22
  4. Step 4: Simplify right side
    290,016.42x = 67,696,654,533.28
  5. Step 5: Solve for x
    x = 67,696,654,533.28/290,016.42
  6. Step 6: Final answer
    x = 233,423.52

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1.5x scale

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.