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Finding the Fourth Proportional to 342,136.80, 472,133.92 and 187,085.24

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Solution

The fourth proportional to 342,136.80, 472,133.92 and 187,085.24 is: 258,169.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,136.80 : 472,133.92 = 187,085.24 : x
  2. Step 2: Convert to fraction form
    342,136.80/472,133.92 = 187,085.24/x
  3. Step 3: Cross multiply
    342,136.80x = 472,133.92 × 187,085.24
  4. Step 4: Simplify right side
    342,136.80x = 88,329,287,735.34
  5. Step 5: Solve for x
    x = 88,329,287,735.34/342,136.80
  6. Step 6: Final answer
    x = 258,169.50

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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.