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Finding the Fourth Proportional to 246,417.90, 369,540.45 and 128,049.90

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Solution

The fourth proportional to 246,417.90, 369,540.45 and 128,049.90 is: 192,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,417.90 : 369,540.45 = 128,049.90 : x
  2. Step 2: Convert to fraction form
    246,417.90/369,540.45 = 128,049.90/x
  3. Step 3: Cross multiply
    246,417.90x = 369,540.45 × 128,049.90
  4. Step 4: Simplify right side
    246,417.90x = 47,319,617,668.46
  5. Step 5: Solve for x
    x = 47,319,617,668.46/246,417.90
  6. Step 6: Final answer
    x = 192,029.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.