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Finding the Fourth Proportional to 240,915.88, 332,510.28 and 139,007.20

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Solution

The fourth proportional to 240,915.88, 332,510.28 and 139,007.20 is: 191,856.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,915.88 : 332,510.28 = 139,007.20 : x
  2. Step 2: Convert to fraction form
    240,915.88/332,510.28 = 139,007.20/x
  3. Step 3: Cross multiply
    240,915.88x = 332,510.28 × 139,007.20
  4. Step 4: Simplify right side
    240,915.88x = 46,221,322,994.02
  5. Step 5: Solve for x
    x = 46,221,322,994.02/240,915.88
  6. Step 6: Final answer
    x = 191,856.69

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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.