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Finding the Fourth Proportional to 228,116.50, 314,797.48 and 126,139.72

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Solution

The fourth proportional to 228,116.50, 314,797.48 and 126,139.72 is: 174,070.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,116.50 : 314,797.48 = 126,139.72 : x
  2. Step 2: Convert to fraction form
    228,116.50/314,797.48 = 126,139.72/x
  3. Step 3: Cross multiply
    228,116.50x = 314,797.48 × 126,139.72
  4. Step 4: Simplify right side
    228,116.50x = 39,708,465,983.91
  5. Step 5: Solve for x
    x = 39,708,465,983.91/228,116.50
  6. Step 6: Final answer
    x = 174,070.99

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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.