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Finding the Fourth Proportional to 475,173.70, 655,739.64 and 284,187.10

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Solution

The fourth proportional to 475,173.70, 655,739.64 and 284,187.10 is: 392,178.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,173.70 : 655,739.64 = 284,187.10 : x
  2. Step 2: Convert to fraction form
    475,173.70/655,739.64 = 284,187.10/x
  3. Step 3: Cross multiply
    475,173.70x = 655,739.64 × 284,187.10
  4. Step 4: Simplify right side
    475,173.70x = 186,352,746,646.64
  5. Step 5: Solve for x
    x = 186,352,746,646.64/475,173.70
  6. Step 6: Final answer
    x = 392,178.16

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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.