Home / 282,276.39-389,539.78-153,217.42

Finding the Fourth Proportional to 282,276.39, 389,539.78 and 153,217.42

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Solution

The fourth proportional to 282,276.39, 389,539.78 and 153,217.42 is: 211,439.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,276.39 : 389,539.78 = 153,217.42 : x
  2. Step 2: Convert to fraction form
    282,276.39/389,539.78 = 153,217.42/x
  3. Step 3: Cross multiply
    282,276.39x = 389,539.78 × 153,217.42
  4. Step 4: Simplify right side
    282,276.39x = 59,684,281,775.08
  5. Step 5: Solve for x
    x = 59,684,281,775.08/282,276.39
  6. Step 6: Final answer
    x = 211,439.15

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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.