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Finding the Fourth Proportional to 407,941.60, 562,879.92 and 238,182.88

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Solution

The fourth proportional to 407,941.60, 562,879.92 and 238,182.88 is: 328,645.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,941.60 : 562,879.92 = 238,182.88 : x
  2. Step 2: Convert to fraction form
    407,941.60/562,879.92 = 238,182.88/x
  3. Step 3: Cross multiply
    407,941.60x = 562,879.92 × 238,182.88
  4. Step 4: Simplify right side
    407,941.60x = 134,068,360,439.77
  5. Step 5: Solve for x
    x = 134,068,360,439.77/407,941.60
  6. Step 6: Final answer
    x = 328,645.96

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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.