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Finding the Fourth Proportional to 255,565.32, 352,687.14 and 142,395.48

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Solution

The fourth proportional to 255,565.32, 352,687.14 and 142,395.48 is: 196,509.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,565.32 : 352,687.14 = 142,395.48 : x
  2. Step 2: Convert to fraction form
    255,565.32/352,687.14 = 142,395.48/x
  3. Step 3: Cross multiply
    255,565.32x = 352,687.14 × 142,395.48
  4. Step 4: Simplify right side
    255,565.32x = 50,221,054,590.13
  5. Step 5: Solve for x
    x = 50,221,054,590.13/255,565.32
  6. Step 6: Final answer
    x = 196,509.66

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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.