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Finding the Fourth Proportional to 140,804.80, 211,240.40 and 40,967.20

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Solution

The fourth proportional to 140,804.80, 211,240.40 and 40,967.20 is: 61,460.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,804.80 : 211,240.40 = 40,967.20 : x
  2. Step 2: Convert to fraction form
    140,804.80/211,240.40 = 40,967.20/x
  3. Step 3: Cross multiply
    140,804.80x = 211,240.40 × 40,967.20
  4. Step 4: Simplify right side
    140,804.80x = 8,653,927,714.88
  5. Step 5: Solve for x
    x = 8,653,927,714.88/140,804.80
  6. Step 6: Final answer
    x = 61,460.46

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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.