Home / 186,278.25-256,574.28-143,175.32

Finding the Fourth Proportional to 186,278.25, 256,574.28 and 143,175.32

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Solution

The fourth proportional to 186,278.25, 256,574.28 and 143,175.32 is: 197,205.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,278.25 : 256,574.28 = 143,175.32 : x
  2. Step 2: Convert to fraction form
    186,278.25/256,574.28 = 143,175.32/x
  3. Step 3: Cross multiply
    186,278.25x = 256,574.28 × 143,175.32
  4. Step 4: Simplify right side
    186,278.25x = 36,735,104,642.77
  5. Step 5: Solve for x
    x = 36,735,104,642.77/186,278.25
  6. Step 6: Final answer
    x = 197,205.55

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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.