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Finding the Fourth Proportional to 260,639.73, 359,676.72 and 153,212.67

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Solution

The fourth proportional to 260,639.73, 359,676.72 and 153,212.67 is: 211,429.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,639.73 : 359,676.72 = 153,212.67 : x
  2. Step 2: Convert to fraction form
    260,639.73/359,676.72 = 153,212.67/x
  3. Step 3: Cross multiply
    260,639.73x = 359,676.72 × 153,212.67
  4. Step 4: Simplify right side
    260,639.73x = 55,107,030,608.04
  5. Step 5: Solve for x
    x = 55,107,030,608.04/260,639.73
  6. Step 6: Final answer
    x = 211,429.89

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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.