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Finding the Fourth Proportional to 422,038.15, 582,409.04 and 228,444.91

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Solution

The fourth proportional to 422,038.15, 582,409.04 and 228,444.91 is: 315,252.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,038.15 : 582,409.04 = 228,444.91 : x
  2. Step 2: Convert to fraction form
    422,038.15/582,409.04 = 228,444.91/x
  3. Step 3: Cross multiply
    422,038.15x = 582,409.04 × 228,444.91
  4. Step 4: Simplify right side
    422,038.15x = 133,048,378,127.74
  5. Step 5: Solve for x
    x = 133,048,378,127.74/422,038.15
  6. Step 6: Final answer
    x = 315,252.02

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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.