Home / 290,599.98-401,012.56-163,267.38

Finding the Fourth Proportional to 290,599.98, 401,012.56 and 163,267.38

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Solution

The fourth proportional to 290,599.98, 401,012.56 and 163,267.38 is: 225,300.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,599.98 : 401,012.56 = 163,267.38 : x
  2. Step 2: Convert to fraction form
    290,599.98/401,012.56 = 163,267.38/x
  3. Step 3: Cross multiply
    290,599.98x = 401,012.56 × 163,267.38
  4. Step 4: Simplify right side
    290,599.98x = 65,472,270,018.29
  5. Step 5: Solve for x
    x = 65,472,270,018.29/290,599.98
  6. Step 6: Final answer
    x = 225,300.33

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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.