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Finding the Fourth Proportional to 284,447.84, 392,521.75 and 169,855.79

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Solution

The fourth proportional to 284,447.84, 392,521.75 and 169,855.79 is: 234,391.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,447.84 : 392,521.75 = 169,855.79 : x
  2. Step 2: Convert to fraction form
    284,447.84/392,521.75 = 169,855.79/x
  3. Step 3: Cross multiply
    284,447.84x = 392,521.75 × 169,855.79
  4. Step 4: Simplify right side
    284,447.84x = 66,672,089,551.18
  5. Step 5: Solve for x
    x = 66,672,089,551.18/284,447.84
  6. Step 6: Final answer
    x = 234,391.27

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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.