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Finding the Fourth Proportional to 213,861.78, 295,124.85 and 118,362.78

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Solution

The fourth proportional to 213,861.78, 295,124.85 and 118,362.78 is: 163,338.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,861.78 : 295,124.85 = 118,362.78 : x
  2. Step 2: Convert to fraction form
    213,861.78/295,124.85 = 118,362.78/x
  3. Step 3: Cross multiply
    213,861.78x = 295,124.85 × 118,362.78
  4. Step 4: Simplify right side
    213,861.78x = 34,931,797,693.08
  5. Step 5: Solve for x
    x = 34,931,797,693.08/213,861.78
  6. Step 6: Final answer
    x = 163,338.20

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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.