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Finding the Fourth Proportional to 338,877.60, 507,985.80 and 161,336.88

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Solution

The fourth proportional to 338,877.60, 507,985.80 and 161,336.88 is: 241,847.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,877.60 : 507,985.80 = 161,336.88 : x
  2. Step 2: Convert to fraction form
    338,877.60/507,985.80 = 161,336.88/x
  3. Step 3: Cross multiply
    338,877.60x = 507,985.80 × 161,336.88
  4. Step 4: Simplify right side
    338,877.60x = 81,956,844,056.30
  5. Step 5: Solve for x
    x = 81,956,844,056.30/338,877.60
  6. Step 6: Final answer
    x = 241,847.92

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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.