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Finding the Fourth Proportional to 242,065.43, 333,820.98 and 154,878.09

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Solution

The fourth proportional to 242,065.43, 333,820.98 and 154,878.09 is: 213,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,065.43 : 333,820.98 = 154,878.09 : x
  2. Step 2: Convert to fraction form
    242,065.43/333,820.98 = 154,878.09/x
  3. Step 3: Cross multiply
    242,065.43x = 333,820.98 × 154,878.09
  4. Step 4: Simplify right side
    242,065.43x = 51,701,555,784.33
  5. Step 5: Solve for x
    x = 51,701,555,784.33/242,065.43
  6. Step 6: Final answer
    x = 213,585.05

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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.