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Finding the Fourth Proportional to 290,059.52, 435,110.25 and 121,410.23

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Solution

The fourth proportional to 290,059.52, 435,110.25 and 121,410.23 is: 182,124.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,059.52 : 435,110.25 = 121,410.23 : x
  2. Step 2: Convert to fraction form
    290,059.52/435,110.25 = 121,410.23/x
  3. Step 3: Cross multiply
    290,059.52x = 435,110.25 × 121,410.23
  4. Step 4: Simplify right side
    290,059.52x = 52,826,835,527.86
  5. Step 5: Solve for x
    x = 52,826,835,527.86/290,059.52
  6. Step 6: Final answer
    x = 182,124.12

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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.