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Finding the Fourth Proportional to 284,812.40, 426,967.18 and 107,443.97

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Solution

The fourth proportional to 284,812.40, 426,967.18 and 107,443.97 is: 161,071.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,812.40 : 426,967.18 = 107,443.97 : x
  2. Step 2: Convert to fraction form
    284,812.40/426,967.18 = 107,443.97/x
  3. Step 3: Cross multiply
    284,812.40x = 426,967.18 × 107,443.97
  4. Step 4: Simplify right side
    284,812.40x = 45,875,048,878.90
  5. Step 5: Solve for x
    x = 45,875,048,878.90/284,812.40
  6. Step 6: Final answer
    x = 161,071.11

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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.