Home / 647,943.99-972,102.51-198,730.77

Finding the Fourth Proportional to 647,943.99, 972,102.51 and 198,730.77

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Solution

The fourth proportional to 647,943.99, 972,102.51 and 198,730.77 is: 298,153.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,943.99 : 972,102.51 = 198,730.77 : x
  2. Step 2: Convert to fraction form
    647,943.99/972,102.51 = 198,730.77/x
  3. Step 3: Cross multiply
    647,943.99x = 972,102.51 × 198,730.77
  4. Step 4: Simplify right side
    647,943.99x = 193,186,680,331.23
  5. Step 5: Solve for x
    x = 193,186,680,331.23/647,943.99
  6. Step 6: Final answer
    x = 298,153.36

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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.