Home / 393,022.59-589,312.43-136,737.63

Finding the Fourth Proportional to 393,022.59, 589,312.43 and 136,737.63

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Solution

The fourth proportional to 393,022.59, 589,312.43 and 136,737.63 is: 205,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,022.59 : 589,312.43 = 136,737.63 : x
  2. Step 2: Convert to fraction form
    393,022.59/589,312.43 = 136,737.63/x
  3. Step 3: Cross multiply
    393,022.59x = 589,312.43 × 136,737.63
  4. Step 4: Simplify right side
    393,022.59x = 80,581,185,007.74
  5. Step 5: Solve for x
    x = 80,581,185,007.74/393,022.59
  6. Step 6: Final answer
    x = 205,029.40

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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.