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Finding the Fourth Proportional to 345,549.84, 518,474.52 and 168,210.96

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Solution

The fourth proportional to 345,549.84, 518,474.52 and 168,210.96 is: 252,389.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,549.84 : 518,474.52 = 168,210.96 : x
  2. Step 2: Convert to fraction form
    345,549.84/518,474.52 = 168,210.96/x
  3. Step 3: Cross multiply
    345,549.84x = 518,474.52 × 168,210.96
  4. Step 4: Simplify right side
    345,549.84x = 87,213,096,744.74
  5. Step 5: Solve for x
    x = 87,213,096,744.74/345,549.84
  6. Step 6: Final answer
    x = 252,389.34

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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.