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Finding the Fourth Proportional to 290,450.40, 435,740.40 and 227,464.80

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Solution

The fourth proportional to 290,450.40, 435,740.40 and 227,464.80 is: 341,247.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,450.40 : 435,740.40 = 227,464.80 : x
  2. Step 2: Convert to fraction form
    290,450.40/435,740.40 = 227,464.80/x
  3. Step 3: Cross multiply
    290,450.40x = 435,740.40 × 227,464.80
  4. Step 4: Simplify right side
    290,450.40x = 99,115,602,937.92
  5. Step 5: Solve for x
    x = 99,115,602,937.92/290,450.40
  6. Step 6: Final answer
    x = 341,247.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.