Home / 290,331.31-400,657.52-163,007.21

Finding the Fourth Proportional to 290,331.31, 400,657.52 and 163,007.21

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Solution

The fourth proportional to 290,331.31, 400,657.52 and 163,007.21 is: 224,950.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,331.31 : 400,657.52 = 163,007.21 : x
  2. Step 2: Convert to fraction form
    290,331.31/400,657.52 = 163,007.21/x
  3. Step 3: Cross multiply
    290,331.31x = 400,657.52 × 163,007.21
  4. Step 4: Simplify right side
    290,331.31x = 65,310,064,500.72
  5. Step 5: Solve for x
    x = 65,310,064,500.72/290,331.31
  6. Step 6: Final answer
    x = 224,950.13

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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.