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Finding the Fourth Proportional to 405,021.84, 607,752.12 and 168,527.76

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Solution

The fourth proportional to 405,021.84, 607,752.12 and 168,527.76 is: 252,882.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,021.84 : 607,752.12 = 168,527.76 : x
  2. Step 2: Convert to fraction form
    405,021.84/607,752.12 = 168,527.76/x
  3. Step 3: Cross multiply
    405,021.84x = 607,752.12 × 168,527.76
  4. Step 4: Simplify right side
    405,021.84x = 102,423,103,418.85
  5. Step 5: Solve for x
    x = 102,423,103,418.85/405,021.84
  6. Step 6: Final answer
    x = 252,882.91

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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.