Home / 290,376.16-400,708.74-163,057.12

Finding the Fourth Proportional to 290,376.16, 400,708.74 and 163,057.12

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Solution

The fourth proportional to 290,376.16, 400,708.74 and 163,057.12 is: 225,013.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,376.16 : 400,708.74 = 163,057.12 : x
  2. Step 2: Convert to fraction form
    290,376.16/400,708.74 = 163,057.12/x
  3. Step 3: Cross multiply
    290,376.16x = 400,708.74 × 163,057.12
  4. Step 4: Simplify right side
    290,376.16x = 65,338,413,103.23
  5. Step 5: Solve for x
    x = 65,338,413,103.23/290,376.16
  6. Step 6: Final answer
    x = 225,013.01

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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.