Home / 348,638.06-481,404.12-284,116.80

Finding the Fourth Proportional to 348,638.06, 481,404.12 and 284,116.80

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Solution

The fourth proportional to 348,638.06, 481,404.12 and 284,116.80 is: 392,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,638.06 : 481,404.12 = 284,116.80 : x
  2. Step 2: Convert to fraction form
    348,638.06/481,404.12 = 284,116.80/x
  3. Step 3: Cross multiply
    348,638.06x = 481,404.12 × 284,116.80
  4. Step 4: Simplify right side
    348,638.06x = 136,774,998,081.22
  5. Step 5: Solve for x
    x = 136,774,998,081.22/348,638.06
  6. Step 6: Final answer
    x = 392,312.30

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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.