Home / 259,466.81-389,216.61-109,679.18

Finding the Fourth Proportional to 259,466.81, 389,216.61 and 109,679.18

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Solution

The fourth proportional to 259,466.81, 389,216.61 and 109,679.18 is: 164,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,466.81 : 389,216.61 = 109,679.18 : x
  2. Step 2: Convert to fraction form
    259,466.81/389,216.61 = 109,679.18/x
  3. Step 3: Cross multiply
    259,466.81x = 389,216.61 × 109,679.18
  4. Step 4: Simplify right side
    259,466.81x = 42,688,956,681.10
  5. Step 5: Solve for x
    x = 42,688,956,681.10/259,466.81
  6. Step 6: Final answer
    x = 164,525.70

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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.