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Finding the Fourth Proportional to 246,288.40, 369,346.20 and 127,920.40

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Solution

The fourth proportional to 246,288.40, 369,346.20 and 127,920.40 is: 191,835.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,288.40 : 369,346.20 = 127,920.40 : x
  2. Step 2: Convert to fraction form
    246,288.40/369,346.20 = 127,920.40/x
  3. Step 3: Cross multiply
    246,288.40x = 369,346.20 × 127,920.40
  4. Step 4: Simplify right side
    246,288.40x = 47,246,913,642.48
  5. Step 5: Solve for x
    x = 47,246,913,642.48/246,288.40
  6. Step 6: Final answer
    x = 191,835.72

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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.