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Finding the Fourth Proportional to 168,956.51, 253,210.58 and 140,931.47

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Solution

The fourth proportional to 168,956.51, 253,210.58 and 140,931.47 is: 211,210.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,956.51 : 253,210.58 = 140,931.47 : x
  2. Step 2: Convert to fraction form
    168,956.51/253,210.58 = 140,931.47/x
  3. Step 3: Cross multiply
    168,956.51x = 253,210.58 × 140,931.47
  4. Step 4: Simplify right side
    168,956.51x = 35,685,339,400.03
  5. Step 5: Solve for x
    x = 35,685,339,400.03/168,956.51
  6. Step 6: Final answer
    x = 211,210.21

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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.