Home / 255,490.16-352,587.32-142,312.88

Finding the Fourth Proportional to 255,490.16, 352,587.32 and 142,312.88

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Solution

The fourth proportional to 255,490.16, 352,587.32 and 142,312.88 is: 196,397.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,490.16 : 352,587.32 = 142,312.88 : x
  2. Step 2: Convert to fraction form
    255,490.16/352,587.32 = 142,312.88/x
  3. Step 3: Cross multiply
    255,490.16x = 352,587.32 × 142,312.88
  4. Step 4: Simplify right side
    255,490.16x = 50,177,716,960.68
  5. Step 5: Solve for x
    x = 50,177,716,960.68/255,490.16
  6. Step 6: Final answer
    x = 196,397.85

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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.