Home / 388,939.50-583,409.25-126,283.50

Finding the Fourth Proportional to 388,939.50, 583,409.25 and 126,283.50

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Solution

The fourth proportional to 388,939.50, 583,409.25 and 126,283.50 is: 189,425.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,939.50 : 583,409.25 = 126,283.50 : x
  2. Step 2: Convert to fraction form
    388,939.50/583,409.25 = 126,283.50/x
  3. Step 3: Cross multiply
    388,939.50x = 583,409.25 × 126,283.50
  4. Step 4: Simplify right side
    388,939.50x = 73,674,962,022.38
  5. Step 5: Solve for x
    x = 73,674,962,022.38/388,939.50
  6. Step 6: Final answer
    x = 189,425.25

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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.