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Finding the Fourth Proportional to 358,897.80, 495,517.50 and 223,134.60

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Solution

The fourth proportional to 358,897.80, 495,517.50 and 223,134.60 is: 308,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,897.80 : 495,517.50 = 223,134.60 : x
  2. Step 2: Convert to fraction form
    358,897.80/495,517.50 = 223,134.60/x
  3. Step 3: Cross multiply
    358,897.80x = 495,517.50 × 223,134.60
  4. Step 4: Simplify right side
    358,897.80x = 110,567,099,155.50
  5. Step 5: Solve for x
    x = 110,567,099,155.50/358,897.80
  6. Step 6: Final answer
    x = 308,074.05

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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.