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Finding the Fourth Proportional to 290,976.01, 436,570.63 and 122,538.74

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Solution

The fourth proportional to 290,976.01, 436,570.63 and 122,538.74 is: 183,853.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,976.01 : 436,570.63 = 122,538.74 : x
  2. Step 2: Convert to fraction form
    290,976.01/436,570.63 = 122,538.74/x
  3. Step 3: Cross multiply
    290,976.01x = 436,570.63 × 122,538.74
  4. Step 4: Simplify right side
    290,976.01x = 53,496,812,432.01
  5. Step 5: Solve for x
    x = 53,496,812,432.01/290,976.01
  6. Step 6: Final answer
    x = 183,853.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.