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Finding the Fourth Proportional to 215,157.69, 296,928.59 and 119,666.25

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Solution

The fourth proportional to 215,157.69, 296,928.59 and 119,666.25 is: 165,145.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,157.69 : 296,928.59 = 119,666.25 : x
  2. Step 2: Convert to fraction form
    215,157.69/296,928.59 = 119,666.25/x
  3. Step 3: Cross multiply
    215,157.69x = 296,928.59 × 119,666.25
  4. Step 4: Simplify right side
    215,157.69x = 35,532,330,284.76
  5. Step 5: Solve for x
    x = 35,532,330,284.76/215,157.69
  6. Step 6: Final answer
    x = 165,145.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.