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Finding the Fourth Proportional to 369,479.96, 509,888.02 and 216,481.54

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Solution

The fourth proportional to 369,479.96, 509,888.02 and 216,481.54 is: 298,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,479.96 : 509,888.02 = 216,481.54 : x
  2. Step 2: Convert to fraction form
    369,479.96/509,888.02 = 216,481.54/x
  3. Step 3: Cross multiply
    369,479.96x = 509,888.02 × 216,481.54
  4. Step 4: Simplify right side
    369,479.96x = 110,381,343,797.15
  5. Step 5: Solve for x
    x = 110,381,343,797.15/369,479.96
  6. Step 6: Final answer
    x = 298,747.85

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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.