Home / 252,200.40-378,300.60-111,973.20

Finding the Fourth Proportional to 252,200.40, 378,300.60 and 111,973.20

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Solution

The fourth proportional to 252,200.40, 378,300.60 and 111,973.20 is: 167,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,200.40 : 378,300.60 = 111,973.20 : x
  2. Step 2: Convert to fraction form
    252,200.40/378,300.60 = 111,973.20/x
  3. Step 3: Cross multiply
    252,200.40x = 378,300.60 × 111,973.20
  4. Step 4: Simplify right side
    252,200.40x = 42,359,528,743.92
  5. Step 5: Solve for x
    x = 42,359,528,743.92/252,200.40
  6. Step 6: Final answer
    x = 167,959.80

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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.