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Finding the Fourth Proportional to 285,333.84, 428,005.62 and 107,924.40

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Solution

The fourth proportional to 285,333.84, 428,005.62 and 107,924.40 is: 161,888.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,333.84 : 428,005.62 = 107,924.40 : x
  2. Step 2: Convert to fraction form
    285,333.84/428,005.62 = 107,924.40/x
  3. Step 3: Cross multiply
    285,333.84x = 428,005.62 × 107,924.40
  4. Step 4: Simplify right side
    285,333.84x = 46,192,249,735.13
  5. Step 5: Solve for x
    x = 46,192,249,735.13/285,333.84
  6. Step 6: Final answer
    x = 161,888.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.