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Finding the Fourth Proportional to 201,511.10, 302,461.05 and 101,783.90

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Solution

The fourth proportional to 201,511.10, 302,461.05 and 101,783.90 is: 152,774.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,511.10 : 302,461.05 = 101,783.90 : x
  2. Step 2: Convert to fraction form
    201,511.10/302,461.05 = 101,783.90/x
  3. Step 3: Cross multiply
    201,511.10x = 302,461.05 × 101,783.90
  4. Step 4: Simplify right side
    201,511.10x = 30,785,665,267.10
  5. Step 5: Solve for x
    x = 30,785,665,267.10/201,511.10
  6. Step 6: Final answer
    x = 152,774.04

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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.