Home / 206,011.36-308,488.56-142,741.60

Finding the Fourth Proportional to 206,011.36, 308,488.56 and 142,741.60

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Solution

The fourth proportional to 206,011.36, 308,488.56 and 142,741.60 is: 213,746.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,011.36 : 308,488.56 = 142,741.60 : x
  2. Step 2: Convert to fraction form
    206,011.36/308,488.56 = 142,741.60/x
  3. Step 3: Cross multiply
    206,011.36x = 308,488.56 × 142,741.60
  4. Step 4: Simplify right side
    206,011.36x = 44,034,150,636.10
  5. Step 5: Solve for x
    x = 44,034,150,636.10/206,011.36
  6. Step 6: Final answer
    x = 213,746.23

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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.