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Finding the Fourth Proportional to 290,001.64, 434,923.26 and 79,589.56

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Solution

The fourth proportional to 290,001.64, 434,923.26 and 79,589.56 is: 119,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,001.64 : 434,923.26 = 79,589.56 : x
  2. Step 2: Convert to fraction form
    290,001.64/434,923.26 = 79,589.56/x
  3. Step 3: Cross multiply
    290,001.64x = 434,923.26 × 79,589.56
  4. Step 4: Simplify right side
    290,001.64x = 34,615,350,897.17
  5. Step 5: Solve for x
    x = 34,615,350,897.17/290,001.64
  6. Step 6: Final answer
    x = 119,362.60

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1.5x scale

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.