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Finding the Fourth Proportional to 279,496.76, 385,740.36 and 158,677.16

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Solution

The fourth proportional to 279,496.76, 385,740.36 and 158,677.16 is: 218,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,496.76 : 385,740.36 = 158,677.16 : x
  2. Step 2: Convert to fraction form
    279,496.76/385,740.36 = 158,677.16/x
  3. Step 3: Cross multiply
    279,496.76x = 385,740.36 × 158,677.16
  4. Step 4: Simplify right side
    279,496.76x = 61,208,182,893.48
  5. Step 5: Solve for x
    x = 61,208,182,893.48/279,496.76
  6. Step 6: Final answer
    x = 218,994.25

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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.