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Finding the Fourth Proportional to 353,482.56, 487,802.04 and 210,239.44

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Solution

The fourth proportional to 353,482.56, 487,802.04 and 210,239.44 is: 290,128.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,482.56 : 487,802.04 = 210,239.44 : x
  2. Step 2: Convert to fraction form
    353,482.56/487,802.04 = 210,239.44/x
  3. Step 3: Cross multiply
    353,482.56x = 487,802.04 × 210,239.44
  4. Step 4: Simplify right side
    353,482.56x = 102,555,227,720.46
  5. Step 5: Solve for x
    x = 102,555,227,720.46/353,482.56
  6. Step 6: Final answer
    x = 290,128.11

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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.