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Finding the Fourth Proportional to 252,030.40, 378,045.60 and 168,049.60

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Solution

The fourth proportional to 252,030.40, 378,045.60 and 168,049.60 is: 252,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,030.40 : 378,045.60 = 168,049.60 : x
  2. Step 2: Convert to fraction form
    252,030.40/378,045.60 = 168,049.60/x
  3. Step 3: Cross multiply
    252,030.40x = 378,045.60 × 168,049.60
  4. Step 4: Simplify right side
    252,030.40x = 63,530,411,861.76
  5. Step 5: Solve for x
    x = 63,530,411,861.76/252,030.40
  6. Step 6: Final answer
    x = 252,074.40

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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.