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Finding the Fourth Proportional to 283,485.84, 425,218.11 and 70,254.37

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Solution

The fourth proportional to 283,485.84, 425,218.11 and 70,254.37 is: 105,378.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,485.84 : 425,218.11 = 70,254.37 : x
  2. Step 2: Convert to fraction form
    283,485.84/425,218.11 = 70,254.37/x
  3. Step 3: Cross multiply
    283,485.84x = 425,218.11 × 70,254.37
  4. Step 4: Simplify right side
    283,485.84x = 29,873,430,430.64
  5. Step 5: Solve for x
    x = 29,873,430,430.64/283,485.84
  6. Step 6: Final answer
    x = 105,378.92

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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.