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Finding the Fourth Proportional to 216,965.48, 299,430.86 and 126,349.85

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Solution

The fourth proportional to 216,965.48, 299,430.86 and 126,349.85 is: 174,373.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,965.48 : 299,430.86 = 126,349.85 : x
  2. Step 2: Convert to fraction form
    216,965.48/299,430.86 = 126,349.85/x
  3. Step 3: Cross multiply
    216,965.48x = 299,430.86 × 126,349.85
  4. Step 4: Simplify right side
    216,965.48x = 37,833,042,117.47
  5. Step 5: Solve for x
    x = 37,833,042,117.47/216,965.48
  6. Step 6: Final answer
    x = 174,373.56

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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.