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Finding the Fourth Proportional to 324,368.84, 486,599.70 and 99,748.10

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Solution

The fourth proportional to 324,368.84, 486,599.70 and 99,748.10 is: 149,636.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,368.84 : 486,599.70 = 99,748.10 : x
  2. Step 2: Convert to fraction form
    324,368.84/486,599.70 = 99,748.10/x
  3. Step 3: Cross multiply
    324,368.84x = 486,599.70 × 99,748.10
  4. Step 4: Simplify right side
    324,368.84x = 48,537,395,535.57
  5. Step 5: Solve for x
    x = 48,537,395,535.57/324,368.84
  6. Step 6: Final answer
    x = 149,636.43

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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.