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Finding the Fourth Proportional to 255,034.17, 352,041.90 and 219,079.89

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Solution

The fourth proportional to 255,034.17, 352,041.90 and 219,079.89 is: 302,411.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,034.17 : 352,041.90 = 219,079.89 : x
  2. Step 2: Convert to fraction form
    255,034.17/352,041.90 = 219,079.89/x
  3. Step 3: Cross multiply
    255,034.17x = 352,041.90 × 219,079.89
  4. Step 4: Simplify right side
    255,034.17x = 77,125,300,727.39
  5. Step 5: Solve for x
    x = 77,125,300,727.39/255,034.17
  6. Step 6: Final answer
    x = 302,411.64

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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.