Home / 258,704.16-388,056.34-116,383.20

Finding the Fourth Proportional to 258,704.16, 388,056.34 and 116,383.20

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Solution

The fourth proportional to 258,704.16, 388,056.34 and 116,383.20 is: 174,574.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,704.16 : 388,056.34 = 116,383.20 : x
  2. Step 2: Convert to fraction form
    258,704.16/388,056.34 = 116,383.20/x
  3. Step 3: Cross multiply
    258,704.16x = 388,056.34 × 116,383.20
  4. Step 4: Simplify right side
    258,704.16x = 45,163,236,689.21
  5. Step 5: Solve for x
    x = 45,163,236,689.21/258,704.16
  6. Step 6: Final answer
    x = 174,574.84

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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.