Home / 388,617.03-536,283.41-216,534.31

Finding the Fourth Proportional to 388,617.03, 536,283.41 and 216,534.31

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Solution

The fourth proportional to 388,617.03, 536,283.41 and 216,534.31 is: 298,812.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,617.03 : 536,283.41 = 216,534.31 : x
  2. Step 2: Convert to fraction form
    388,617.03/536,283.41 = 216,534.31/x
  3. Step 3: Cross multiply
    388,617.03x = 536,283.41 × 216,534.31
  4. Step 4: Simplify right side
    388,617.03x = 116,123,757,349.42
  5. Step 5: Solve for x
    x = 116,123,757,349.42/388,617.03
  6. Step 6: Final answer
    x = 298,812.84

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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.