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Finding the Fourth Proportional to 188,452.40, 282,646.20 and 70,062.80

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Solution

The fourth proportional to 188,452.40, 282,646.20 and 70,062.80 is: 105,082.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,452.40 : 282,646.20 = 70,062.80 : x
  2. Step 2: Convert to fraction form
    188,452.40/282,646.20 = 70,062.80/x
  3. Step 3: Cross multiply
    188,452.40x = 282,646.20 × 70,062.80
  4. Step 4: Simplify right side
    188,452.40x = 19,802,984,181.36
  5. Step 5: Solve for x
    x = 19,802,984,181.36/188,452.40
  6. Step 6: Final answer
    x = 105,082.15

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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.