Home / 307,546.20-461,319.30-258,557.40

Finding the Fourth Proportional to 307,546.20, 461,319.30 and 258,557.40

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Solution

The fourth proportional to 307,546.20, 461,319.30 and 258,557.40 is: 387,836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,546.20 : 461,319.30 = 258,557.40 : x
  2. Step 2: Convert to fraction form
    307,546.20/461,319.30 = 258,557.40/x
  3. Step 3: Cross multiply
    307,546.20x = 461,319.30 × 258,557.40
  4. Step 4: Simplify right side
    307,546.20x = 119,277,518,777.82
  5. Step 5: Solve for x
    x = 119,277,518,777.82/307,546.20
  6. Step 6: Final answer
    x = 387,836.10

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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.