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Finding the Fourth Proportional to 271,904.04, 407,897.46 and 138,711.60

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Solution

The fourth proportional to 271,904.04, 407,897.46 and 138,711.60 is: 208,088.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,904.04 : 407,897.46 = 138,711.60 : x
  2. Step 2: Convert to fraction form
    271,904.04/407,897.46 = 138,711.60/x
  3. Step 3: Cross multiply
    271,904.04x = 407,897.46 × 138,711.60
  4. Step 4: Simplify right side
    271,904.04x = 56,580,109,312.54
  5. Step 5: Solve for x
    x = 56,580,109,312.54/271,904.04
  6. Step 6: Final answer
    x = 208,088.52

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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.