Home / 305,390.20-457,863.81-205,302.10

Finding the Fourth Proportional to 305,390.20, 457,863.81 and 205,302.10

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Solution

The fourth proportional to 305,390.20, 457,863.81 and 205,302.10 is: 307,804.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,390.20 : 457,863.81 = 205,302.10 : x
  2. Step 2: Convert to fraction form
    305,390.20/457,863.81 = 205,302.10/x
  3. Step 3: Cross multiply
    305,390.20x = 457,863.81 × 205,302.10
  4. Step 4: Simplify right side
    305,390.20x = 94,000,401,707.00
  5. Step 5: Solve for x
    x = 94,000,401,707.00/305,390.20
  6. Step 6: Final answer
    x = 307,804.25

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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.