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Finding the Fourth Proportional to 228,800.88, 343,244.52 and 86,688.72

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Solution

The fourth proportional to 228,800.88, 343,244.52 and 86,688.72 is: 130,049.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,800.88 : 343,244.52 = 86,688.72 : x
  2. Step 2: Convert to fraction form
    228,800.88/343,244.52 = 86,688.72/x
  3. Step 3: Cross multiply
    228,800.88x = 343,244.52 × 86,688.72
  4. Step 4: Simplify right side
    228,800.88x = 29,755,428,085.81
  5. Step 5: Solve for x
    x = 29,755,428,085.81/228,800.88
  6. Step 6: Final answer
    x = 130,049.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.