Home / 266,749.86-368,109.63-145,890.76

Finding the Fourth Proportional to 266,749.86, 368,109.63 and 145,890.76

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Solution

The fourth proportional to 266,749.86, 368,109.63 and 145,890.76 is: 201,326.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,749.86 : 368,109.63 = 145,890.76 : x
  2. Step 2: Convert to fraction form
    266,749.86/368,109.63 = 145,890.76/x
  3. Step 3: Cross multiply
    266,749.86x = 368,109.63 × 145,890.76
  4. Step 4: Simplify right side
    266,749.86x = 53,703,793,684.02
  5. Step 5: Solve for x
    x = 53,703,793,684.02/266,749.86
  6. Step 6: Final answer
    x = 201,326.42

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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.