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Finding the Fourth Proportional to 231,951.79, 320,088.05 and 136,464.63

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Solution

The fourth proportional to 231,951.79, 320,088.05 and 136,464.63 is: 188,318.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,951.79 : 320,088.05 = 136,464.63 : x
  2. Step 2: Convert to fraction form
    231,951.79/320,088.05 = 136,464.63/x
  3. Step 3: Cross multiply
    231,951.79x = 320,088.05 × 136,464.63
  4. Step 4: Simplify right side
    231,951.79x = 43,680,696,628.35
  5. Step 5: Solve for x
    x = 43,680,696,628.35/231,951.79
  6. Step 6: Final answer
    x = 188,318.00

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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.