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Finding the Fourth Proportional to 150,368.82, 225,482.60 and 87,206.90

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Solution

The fourth proportional to 150,368.82, 225,482.60 and 87,206.90 is: 130,769.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,368.82 : 225,482.60 = 87,206.90 : x
  2. Step 2: Convert to fraction form
    150,368.82/225,482.60 = 87,206.90/x
  3. Step 3: Cross multiply
    150,368.82x = 225,482.60 × 87,206.90
  4. Step 4: Simplify right side
    150,368.82x = 19,663,638,549.94
  5. Step 5: Solve for x
    x = 19,663,638,549.94/150,368.82
  6. Step 6: Final answer
    x = 130,769.39

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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.