Home / 384,896.01-531,172.71-215,130

Finding the Fourth Proportional to 384,896.01, 531,172.71 and 215,130

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Solution

The fourth proportional to 384,896.01, 531,172.71 and 215,130 is: 296,888.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,896.01 : 531,172.71 = 215,130 : x
  2. Step 2: Convert to fraction form
    384,896.01/531,172.71 = 215,130/x
  3. Step 3: Cross multiply
    384,896.01x = 531,172.71 × 215,130
  4. Step 4: Simplify right side
    384,896.01x = 114,271,185,102.30
  5. Step 5: Solve for x
    x = 114,271,185,102.30/384,896.01
  6. Step 6: Final answer
    x = 296,888.46

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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.