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Finding the Fourth Proportional to 290,474.53, 400,807.74 and 181,565.98

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Solution

The fourth proportional to 290,474.53, 400,807.74 and 181,565.98 is: 250,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,474.53 : 400,807.74 = 181,565.98 : x
  2. Step 2: Convert to fraction form
    290,474.53/400,807.74 = 181,565.98/x
  3. Step 3: Cross multiply
    290,474.53x = 400,807.74 × 181,565.98
  4. Step 4: Simplify right side
    290,474.53x = 72,773,050,104.69
  5. Step 5: Solve for x
    x = 72,773,050,104.69/290,474.53
  6. Step 6: Final answer
    x = 250,531.60

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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.