Home / 384,904.30-531,146.46-212,812.30

Finding the Fourth Proportional to 384,904.30, 531,146.46 and 212,812.30

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Solution

The fourth proportional to 384,904.30, 531,146.46 and 212,812.30 is: 293,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,904.30 : 531,146.46 = 212,812.30 : x
  2. Step 2: Convert to fraction form
    384,904.30/531,146.46 = 212,812.30/x
  3. Step 3: Cross multiply
    384,904.30x = 531,146.46 × 212,812.30
  4. Step 4: Simplify right side
    384,904.30x = 113,034,499,789.46
  5. Step 5: Solve for x
    x = 113,034,499,789.46/384,904.30
  6. Step 6: Final answer
    x = 293,669.10

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1.5x scale

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.