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Finding the Fourth Proportional to 290,248.90, 435,205.74 and 112,548.32

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Solution

The fourth proportional to 290,248.90, 435,205.74 and 112,548.32 is: 168,757.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,248.90 : 435,205.74 = 112,548.32 : x
  2. Step 2: Convert to fraction form
    290,248.90/435,205.74 = 112,548.32/x
  3. Step 3: Cross multiply
    290,248.90x = 435,205.74 × 112,548.32
  4. Step 4: Simplify right side
    290,248.90x = 48,981,674,891.36
  5. Step 5: Solve for x
    x = 48,981,674,891.36/290,248.90
  6. Step 6: Final answer
    x = 168,757.49

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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.