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Finding the Fourth Proportional to 368,900.46, 509,101.58 and 225,615.50

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Solution

The fourth proportional to 368,900.46, 509,101.58 and 225,615.50 is: 311,360.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,900.46 : 509,101.58 = 225,615.50 : x
  2. Step 2: Convert to fraction form
    368,900.46/509,101.58 = 225,615.50/x
  3. Step 3: Cross multiply
    368,900.46x = 509,101.58 × 225,615.50
  4. Step 4: Simplify right side
    368,900.46x = 114,861,207,522.49
  5. Step 5: Solve for x
    x = 114,861,207,522.49/368,900.46
  6. Step 6: Final answer
    x = 311,360.98

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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.