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Finding the Fourth Proportional to 277,879.52, 383,468.74 and 157,018.21

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Solution

The fourth proportional to 277,879.52, 383,468.74 and 157,018.21 is: 216,682.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,879.52 : 383,468.74 = 157,018.21 : x
  2. Step 2: Convert to fraction form
    277,879.52/383,468.74 = 157,018.21/x
  3. Step 3: Cross multiply
    277,879.52x = 383,468.74 × 157,018.21
  4. Step 4: Simplify right side
    277,879.52x = 60,211,572,443.32
  5. Step 5: Solve for x
    x = 60,211,572,443.32/277,879.52
  6. Step 6: Final answer
    x = 216,682.30

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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.