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Finding the Fourth Proportional to 255,492.64, 352,590.72 and 142,315.44

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Solution

The fourth proportional to 255,492.64, 352,590.72 and 142,315.44 is: 196,401.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,492.64 : 352,590.72 = 142,315.44 : x
  2. Step 2: Convert to fraction form
    255,492.64/352,590.72 = 142,315.44/x
  3. Step 3: Cross multiply
    255,492.64x = 352,590.72 × 142,315.44
  4. Step 4: Simplify right side
    255,492.64x = 50,179,103,456.72
  5. Step 5: Solve for x
    x = 50,179,103,456.72/255,492.64
  6. Step 6: Final answer
    x = 196,401.37

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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.