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Finding the Fourth Proportional to 223,098, 307,877.40 and 122,498.16

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Solution

The fourth proportional to 223,098, 307,877.40 and 122,498.16 is: 169,048.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,098 : 307,877.40 = 122,498.16 : x
  2. Step 2: Convert to fraction form
    223,098/307,877.40 = 122,498.16/x
  3. Step 3: Cross multiply
    223,098x = 307,877.40 × 122,498.16
  4. Step 4: Simplify right side
    223,098x = 37,714,415,005.58
  5. Step 5: Solve for x
    x = 37,714,415,005.58/223,098
  6. Step 6: Final answer
    x = 169,048.65

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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.