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Finding the Fourth Proportional to 255,393, 352,442.34 and 142,237.62

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Solution

The fourth proportional to 255,393, 352,442.34 and 142,237.62 is: 196,287.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,393 : 352,442.34 = 142,237.62 : x
  2. Step 2: Convert to fraction form
    255,393/352,442.34 = 142,237.62/x
  3. Step 3: Cross multiply
    255,393x = 352,442.34 × 142,237.62
  4. Step 4: Simplify right side
    255,393x = 50,130,559,628.83
  5. Step 5: Solve for x
    x = 50,130,559,628.83/255,393
  6. Step 6: Final answer
    x = 196,287.92

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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.