Home / 388,618.03-536,284.79-216,535.31

Finding the Fourth Proportional to 388,618.03, 536,284.79 and 216,535.31

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Solution

The fourth proportional to 388,618.03, 536,284.79 and 216,535.31 is: 298,814.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,618.03 : 536,284.79 = 216,535.31 : x
  2. Step 2: Convert to fraction form
    388,618.03/536,284.79 = 216,535.31/x
  3. Step 3: Cross multiply
    388,618.03x = 536,284.79 × 216,535.31
  4. Step 4: Simplify right side
    388,618.03x = 116,124,593,250.94
  5. Step 5: Solve for x
    x = 116,124,593,250.94/388,618.03
  6. Step 6: Final answer
    x = 298,814.22

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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.