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Finding the Fourth Proportional to 347,706.63, 479,780.33 and 202,536.32

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Solution

The fourth proportional to 347,706.63, 479,780.33 and 202,536.32 is: 279,468.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,706.63 : 479,780.33 = 202,536.32 : x
  2. Step 2: Convert to fraction form
    347,706.63/479,780.33 = 202,536.32/x
  3. Step 3: Cross multiply
    347,706.63x = 479,780.33 × 202,536.32
  4. Step 4: Simplify right side
    347,706.63x = 97,172,939,035.00
  5. Step 5: Solve for x
    x = 97,172,939,035.00/347,706.63
  6. Step 6: Final answer
    x = 279,468.18

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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.