Home / 285,095.03-393,432.18-154,272.68

Finding the Fourth Proportional to 285,095.03, 393,432.18 and 154,272.68

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Solution

The fourth proportional to 285,095.03, 393,432.18 and 154,272.68 is: 212,896.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,095.03 : 393,432.18 = 154,272.68 : x
  2. Step 2: Convert to fraction form
    285,095.03/393,432.18 = 154,272.68/x
  3. Step 3: Cross multiply
    285,095.03x = 393,432.18 × 154,272.68
  4. Step 4: Simplify right side
    285,095.03x = 60,695,836,806.84
  5. Step 5: Solve for x
    x = 60,695,836,806.84/285,095.03
  6. Step 6: Final answer
    x = 212,896.86

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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.