Home / 256,743.46-354,322.32-143,566.18

Finding the Fourth Proportional to 256,743.46, 354,322.32 and 143,566.18

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Solution

The fourth proportional to 256,743.46, 354,322.32 and 143,566.18 is: 198,130.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,743.46 : 354,322.32 = 143,566.18 : x
  2. Step 2: Convert to fraction form
    256,743.46/354,322.32 = 143,566.18/x
  3. Step 3: Cross multiply
    256,743.46x = 354,322.32 × 143,566.18
  4. Step 4: Simplify right side
    256,743.46x = 50,868,701,971.14
  5. Step 5: Solve for x
    x = 50,868,701,971.14/256,743.46
  6. Step 6: Final answer
    x = 198,130.47

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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.