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Finding the Fourth Proportional to 174,560, 240,893.28 and 99,120.32

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Solution

The fourth proportional to 174,560, 240,893.28 and 99,120.32 is: 136,786.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,560 : 240,893.28 = 99,120.32 : x
  2. Step 2: Convert to fraction form
    174,560/240,893.28 = 99,120.32/x
  3. Step 3: Cross multiply
    174,560x = 240,893.28 × 99,120.32
  4. Step 4: Simplify right side
    174,560x = 23,877,418,999.45
  5. Step 5: Solve for x
    x = 23,877,418,999.45/174,560
  6. Step 6: Final answer
    x = 136,786.31

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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.