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Finding the Fourth Proportional to 636,104.15, 954,154.31 and 257,020.41

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Solution

The fourth proportional to 636,104.15, 954,154.31 and 257,020.41 is: 385,529.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,104.15 : 954,154.31 = 257,020.41 : x
  2. Step 2: Convert to fraction form
    636,104.15/954,154.31 = 257,020.41/x
  3. Step 3: Cross multiply
    636,104.15x = 954,154.31 × 257,020.41
  4. Step 4: Simplify right side
    636,104.15x = 245,237,130,674.37
  5. Step 5: Solve for x
    x = 245,237,130,674.37/636,104.15
  6. Step 6: Final answer
    x = 385,529.84

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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.