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Finding the Fourth Proportional to 283,489.30, 425,223.32 and 70,257.92

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Solution

The fourth proportional to 283,489.30, 425,223.32 and 70,257.92 is: 105,384.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,489.30 : 425,223.32 = 70,257.92 : x
  2. Step 2: Convert to fraction form
    283,489.30/425,223.32 = 70,257.92/x
  3. Step 3: Cross multiply
    283,489.30x = 425,223.32 × 70,257.92
  4. Step 4: Simplify right side
    283,489.30x = 29,875,303,916.49
  5. Step 5: Solve for x
    x = 29,875,303,916.49/283,489.30
  6. Step 6: Final answer
    x = 105,384.24

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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.