Home / 281,532.16-388,524.06-154,207.76

Finding the Fourth Proportional to 281,532.16, 388,524.06 and 154,207.76

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Solution

The fourth proportional to 281,532.16, 388,524.06 and 154,207.76 is: 212,812.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,532.16 : 388,524.06 = 154,207.76 : x
  2. Step 2: Convert to fraction form
    281,532.16/388,524.06 = 154,207.76/x
  3. Step 3: Cross multiply
    281,532.16x = 388,524.06 × 154,207.76
  4. Step 4: Simplify right side
    281,532.16x = 59,913,423,056.09
  5. Step 5: Solve for x
    x = 59,913,423,056.09/281,532.16
  6. Step 6: Final answer
    x = 212,812.00

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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.