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Finding the Fourth Proportional to 356,116.84, 534,246.54 and 131,478.64

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Solution

The fourth proportional to 356,116.84, 534,246.54 and 131,478.64 is: 197,244.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,116.84 : 534,246.54 = 131,478.64 : x
  2. Step 2: Convert to fraction form
    356,116.84/534,246.54 = 131,478.64/x
  3. Step 3: Cross multiply
    356,116.84x = 534,246.54 × 131,478.64
  4. Step 4: Simplify right side
    356,116.84x = 70,242,008,503.91
  5. Step 5: Solve for x
    x = 70,242,008,503.91/356,116.84
  6. Step 6: Final answer
    x = 197,244.28

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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.