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Finding the Fourth Proportional to 163,479.54, 245,070.72 and 145,764.84

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Solution

The fourth proportional to 163,479.54, 245,070.72 and 145,764.84 is: 218,514.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,479.54 : 245,070.72 = 145,764.84 : x
  2. Step 2: Convert to fraction form
    163,479.54/245,070.72 = 145,764.84/x
  3. Step 3: Cross multiply
    163,479.54x = 245,070.72 × 145,764.84
  4. Step 4: Simplify right side
    163,479.54x = 35,722,694,289.48
  5. Step 5: Solve for x
    x = 35,722,694,289.48/163,479.54
  6. Step 6: Final answer
    x = 218,514.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.