Home / 282,510.39-389,867.19-153,451.38

Finding the Fourth Proportional to 282,510.39, 389,867.19 and 153,451.38

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Solution

The fourth proportional to 282,510.39, 389,867.19 and 153,451.38 is: 211,764.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,510.39 : 389,867.19 = 153,451.38 : x
  2. Step 2: Convert to fraction form
    282,510.39/389,867.19 = 153,451.38/x
  3. Step 3: Cross multiply
    282,510.39x = 389,867.19 × 153,451.38
  4. Step 4: Simplify right side
    282,510.39x = 59,825,658,322.22
  5. Step 5: Solve for x
    x = 59,825,658,322.22/282,510.39
  6. Step 6: Final answer
    x = 211,764.45

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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.