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Finding the Fourth Proportional to 100,368.79, 150,553.08 and 30,248.10

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Solution

The fourth proportional to 100,368.79, 150,553.08 and 30,248.10 is: 45,372.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,368.79 : 150,553.08 = 30,248.10 : x
  2. Step 2: Convert to fraction form
    100,368.79/150,553.08 = 30,248.10/x
  3. Step 3: Cross multiply
    100,368.79x = 150,553.08 × 30,248.10
  4. Step 4: Simplify right side
    100,368.79x = 4,553,944,619.15
  5. Step 5: Solve for x
    x = 4,553,944,619.15/100,368.79
  6. Step 6: Final answer
    x = 45,372.12

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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.