Home / 290,330.82-400,656.53-163,009.15

Finding the Fourth Proportional to 290,330.82, 400,656.53 and 163,009.15

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Solution

The fourth proportional to 290,330.82, 400,656.53 and 163,009.15 is: 224,952.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,330.82 : 400,656.53 = 163,009.15 : x
  2. Step 2: Convert to fraction form
    290,330.82/400,656.53 = 163,009.15/x
  3. Step 3: Cross multiply
    290,330.82x = 400,656.53 × 163,009.15
  4. Step 4: Simplify right side
    290,330.82x = 65,310,680,397.25
  5. Step 5: Solve for x
    x = 65,310,680,397.25/290,330.82
  6. Step 6: Final answer
    x = 224,952.63

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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.