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Finding the Fourth Proportional to 290,575.73, 401,001.91 and 159,751.78

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Solution

The fourth proportional to 290,575.73, 401,001.91 and 159,751.78 is: 220,461.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,575.73 : 401,001.91 = 159,751.78 : x
  2. Step 2: Convert to fraction form
    290,575.73/401,001.91 = 159,751.78/x
  3. Step 3: Cross multiply
    290,575.73x = 401,001.91 × 159,751.78
  4. Step 4: Simplify right side
    290,575.73x = 64,060,767,504.02
  5. Step 5: Solve for x
    x = 64,060,767,504.02/290,575.73
  6. Step 6: Final answer
    x = 220,461.52

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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.