Home / 388,283.93-535,727.20-227,178.57

Finding the Fourth Proportional to 388,283.93, 535,727.20 and 227,178.57

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Solution

The fourth proportional to 388,283.93, 535,727.20 and 227,178.57 is: 313,445.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,283.93 : 535,727.20 = 227,178.57 : x
  2. Step 2: Convert to fraction form
    388,283.93/535,727.20 = 227,178.57/x
  3. Step 3: Cross multiply
    388,283.93x = 535,727.20 × 227,178.57
  4. Step 4: Simplify right side
    388,283.93x = 121,705,739,206.10
  5. Step 5: Solve for x
    x = 121,705,739,206.10/388,283.93
  6. Step 6: Final answer
    x = 313,445.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.