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Finding the Fourth Proportional to 318,808.02, 439,957.95 and 175,568.64

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Solution

The fourth proportional to 318,808.02, 439,957.95 and 175,568.64 is: 242,286.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,808.02 : 439,957.95 = 175,568.64 : x
  2. Step 2: Convert to fraction form
    318,808.02/439,957.95 = 175,568.64/x
  3. Step 3: Cross multiply
    318,808.02x = 439,957.95 × 175,568.64
  4. Step 4: Simplify right side
    318,808.02x = 77,242,818,938.69
  5. Step 5: Solve for x
    x = 77,242,818,938.69/318,808.02
  6. Step 6: Final answer
    x = 242,286.31

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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.