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Finding the Fourth Proportional to 283,776.49, 425,652.42 and 70,539.88

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Solution

The fourth proportional to 283,776.49, 425,652.42 and 70,539.88 is: 105,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,776.49 : 425,652.42 = 70,539.88 : x
  2. Step 2: Convert to fraction form
    283,776.49/425,652.42 = 70,539.88/x
  3. Step 3: Cross multiply
    283,776.49x = 425,652.42 × 70,539.88
  4. Step 4: Simplify right side
    283,776.49x = 30,025,470,628.51
  5. Step 5: Solve for x
    x = 30,025,470,628.51/283,776.49
  6. Step 6: Final answer
    x = 105,806.76

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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.