Home / 282,172.12-389,336.70-162,871

Finding the Fourth Proportional to 282,172.12, 389,336.70 and 162,871

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Solution

The fourth proportional to 282,172.12, 389,336.70 and 162,871 is: 224,726.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,172.12 : 389,336.70 = 162,871 : x
  2. Step 2: Convert to fraction form
    282,172.12/389,336.70 = 162,871/x
  3. Step 3: Cross multiply
    282,172.12x = 389,336.70 × 162,871
  4. Step 4: Simplify right side
    282,172.12x = 63,411,657,665.70
  5. Step 5: Solve for x
    x = 63,411,657,665.70/282,172.12
  6. Step 6: Final answer
    x = 224,726.87

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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.