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Finding the Fourth Proportional to 290,599.23, 401,011.52 and 163,266.63

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Solution

The fourth proportional to 290,599.23, 401,011.52 and 163,266.63 is: 225,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,599.23 : 401,011.52 = 163,266.63 : x
  2. Step 2: Convert to fraction form
    290,599.23/401,011.52 = 163,266.63/x
  3. Step 3: Cross multiply
    290,599.23x = 401,011.52 × 163,266.63
  4. Step 4: Simplify right side
    290,599.23x = 65,471,799,461.58
  5. Step 5: Solve for x
    x = 65,471,799,461.58/290,599.23
  6. Step 6: Final answer
    x = 225,299.29

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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.