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Finding the Fourth Proportional to 239,714.48, 330,804.60 and 139,110.32

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Solution

The fourth proportional to 239,714.48, 330,804.60 and 139,110.32 is: 191,971.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,714.48 : 330,804.60 = 139,110.32 : x
  2. Step 2: Convert to fraction form
    239,714.48/330,804.60 = 139,110.32/x
  3. Step 3: Cross multiply
    239,714.48x = 330,804.60 × 139,110.32
  4. Step 4: Simplify right side
    239,714.48x = 46,018,333,763.47
  5. Step 5: Solve for x
    x = 46,018,333,763.47/239,714.48
  6. Step 6: Final answer
    x = 191,971.44

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1.5x scale

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.