Home / 282,136.02-389,347.72-161,279.94

Finding the Fourth Proportional to 282,136.02, 389,347.72 and 161,279.94

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Solution

The fourth proportional to 282,136.02, 389,347.72 and 161,279.94 is: 222,566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,136.02 : 389,347.72 = 161,279.94 : x
  2. Step 2: Convert to fraction form
    282,136.02/389,347.72 = 161,279.94/x
  3. Step 3: Cross multiply
    282,136.02x = 389,347.72 × 161,279.94
  4. Step 4: Simplify right side
    282,136.02x = 62,793,976,920.74
  5. Step 5: Solve for x
    x = 62,793,976,920.74/282,136.02
  6. Step 6: Final answer
    x = 222,566.32

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1.5x scale

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.