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Finding the Fourth Proportional to 240,339.12, 360,399.28 and 127,990.48

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Solution

The fourth proportional to 240,339.12, 360,399.28 and 127,990.48 is: 191,927.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,339.12 : 360,399.28 = 127,990.48 : x
  2. Step 2: Convert to fraction form
    240,339.12/360,399.28 = 127,990.48/x
  3. Step 3: Cross multiply
    240,339.12x = 360,399.28 × 127,990.48
  4. Step 4: Simplify right side
    240,339.12x = 46,127,676,838.85
  5. Step 5: Solve for x
    x = 46,127,676,838.85/240,339.12
  6. Step 6: Final answer
    x = 191,927.46

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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.