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Finding the Fourth Proportional to 254,374.76, 350,966.04 and 158,978.36

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Solution

The fourth proportional to 254,374.76, 350,966.04 and 158,978.36 is: 219,345.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,374.76 : 350,966.04 = 158,978.36 : x
  2. Step 2: Convert to fraction form
    254,374.76/350,966.04 = 158,978.36/x
  3. Step 3: Cross multiply
    254,374.76x = 350,966.04 × 158,978.36
  4. Step 4: Simplify right side
    254,374.76x = 55,796,005,454.89
  5. Step 5: Solve for x
    x = 55,796,005,454.89/254,374.76
  6. Step 6: Final answer
    x = 219,345.68

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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.