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Finding the Fourth Proportional to 290,014.82, 435,180.80 and 112,528.84

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Solution

The fourth proportional to 290,014.82, 435,180.80 and 112,528.84 is: 168,854.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,014.82 : 435,180.80 = 112,528.84 : x
  2. Step 2: Convert to fraction form
    290,014.82/435,180.80 = 112,528.84/x
  3. Step 3: Cross multiply
    290,014.82x = 435,180.80 × 112,528.84
  4. Step 4: Simplify right side
    290,014.82x = 48,970,390,614.27
  5. Step 5: Solve for x
    x = 48,970,390,614.27/290,014.82
  6. Step 6: Final answer
    x = 168,854.79

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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.