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Finding the Fourth Proportional to 354,495.28, 531,582.48 and 101,717.72

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Solution

The fourth proportional to 354,495.28, 531,582.48 and 101,717.72 is: 152,530.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,495.28 : 531,582.48 = 101,717.72 : x
  2. Step 2: Convert to fraction form
    354,495.28/531,582.48 = 101,717.72/x
  3. Step 3: Cross multiply
    354,495.28x = 531,582.48 × 101,717.72
  4. Step 4: Simplify right side
    354,495.28x = 54,071,357,857.55
  5. Step 5: Solve for x
    x = 54,071,357,857.55/354,495.28
  6. Step 6: Final answer
    x = 152,530.54

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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.