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Finding the Fourth Proportional to 255,482.78, 352,552.10 and 140,738.87

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Solution

The fourth proportional to 255,482.78, 352,552.10 and 140,738.87 is: 194,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,482.78 : 352,552.10 = 140,738.87 : x
  2. Step 2: Convert to fraction form
    255,482.78/352,552.10 = 140,738.87/x
  3. Step 3: Cross multiply
    255,482.78x = 352,552.10 × 140,738.87
  4. Step 4: Simplify right side
    255,482.78x = 49,617,783,156.36
  5. Step 5: Solve for x
    x = 49,617,783,156.36/255,482.78
  6. Step 6: Final answer
    x = 194,211.85

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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.