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Finding the Fourth Proportional to 252,308.04, 378,590.04 and 139,967.52

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Solution

The fourth proportional to 252,308.04, 378,590.04 and 139,967.52 is: 210,022.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,308.04 : 378,590.04 = 139,967.52 : x
  2. Step 2: Convert to fraction form
    252,308.04/378,590.04 = 139,967.52/x
  3. Step 3: Cross multiply
    252,308.04x = 378,590.04 × 139,967.52
  4. Step 4: Simplify right side
    252,308.04x = 52,990,308,995.50
  5. Step 5: Solve for x
    x = 52,990,308,995.50/252,308.04
  6. Step 6: Final answer
    x = 210,022.28

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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.