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Finding the Fourth Proportional to 281,479.73, 388,440.36 and 152,416.89

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Solution

The fourth proportional to 281,479.73, 388,440.36 and 152,416.89 is: 210,334.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,479.73 : 388,440.36 = 152,416.89 : x
  2. Step 2: Convert to fraction form
    281,479.73/388,440.36 = 152,416.89/x
  3. Step 3: Cross multiply
    281,479.73x = 388,440.36 × 152,416.89
  4. Step 4: Simplify right side
    281,479.73x = 59,204,871,621.68
  5. Step 5: Solve for x
    x = 59,204,871,621.68/281,479.73
  6. Step 6: Final answer
    x = 210,334.41

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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.