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Finding the Fourth Proportional to 318,602.47, 439,671.52 and 175,361.49

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Solution

The fourth proportional to 318,602.47, 439,671.52 and 175,361.49 is: 241,998.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,602.47 : 439,671.52 = 175,361.49 : x
  2. Step 2: Convert to fraction form
    318,602.47/439,671.52 = 175,361.49/x
  3. Step 3: Cross multiply
    318,602.47x = 439,671.52 × 175,361.49
  4. Step 4: Simplify right side
    318,602.47x = 77,101,452,857.76
  5. Step 5: Solve for x
    x = 77,101,452,857.76/318,602.47
  6. Step 6: Final answer
    x = 241,998.92

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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.