Home / 388,769.60-583,315.50-186,263.12

Finding the Fourth Proportional to 388,769.60, 583,315.50 and 186,263.12

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Solution

The fourth proportional to 388,769.60, 583,315.50 and 186,263.12 is: 279,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,769.60 : 583,315.50 = 186,263.12 : x
  2. Step 2: Convert to fraction form
    388,769.60/583,315.50 = 186,263.12/x
  3. Step 3: Cross multiply
    388,769.60x = 583,315.50 × 186,263.12
  4. Step 4: Simplify right side
    388,769.60x = 108,650,164,974.36
  5. Step 5: Solve for x
    x = 108,650,164,974.36/388,769.60
  6. Step 6: Final answer
    x = 279,471.86

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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.