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Finding the Fourth Proportional to 300,435.68, 414,159.52 and 228,690.72

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Solution

The fourth proportional to 300,435.68, 414,159.52 and 228,690.72 is: 315,256.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,435.68 : 414,159.52 = 228,690.72 : x
  2. Step 2: Convert to fraction form
    300,435.68/414,159.52 = 228,690.72/x
  3. Step 3: Cross multiply
    300,435.68x = 414,159.52 × 228,690.72
  4. Step 4: Simplify right side
    300,435.68x = 94,714,438,823.65
  5. Step 5: Solve for x
    x = 94,714,438,823.65/300,435.68
  6. Step 6: Final answer
    x = 315,256.96

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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.