Home / 300,989.14-415,417.92-228,631.66

Finding the Fourth Proportional to 300,989.14, 415,417.92 and 228,631.66

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Solution

The fourth proportional to 300,989.14, 415,417.92 and 228,631.66 is: 315,551.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,989.14 : 415,417.92 = 228,631.66 : x
  2. Step 2: Convert to fraction form
    300,989.14/415,417.92 = 228,631.66/x
  3. Step 3: Cross multiply
    300,989.14x = 415,417.92 × 228,631.66
  4. Step 4: Simplify right side
    300,989.14x = 94,977,688,643.35
  5. Step 5: Solve for x
    x = 94,977,688,643.35/300,989.14
  6. Step 6: Final answer
    x = 315,551.88

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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.