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Finding the Fourth Proportional to 201,923.65, 302,779.36 and 89,555.28

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Solution

The fourth proportional to 201,923.65, 302,779.36 and 89,555.28 is: 134,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,923.65 : 302,779.36 = 89,555.28 : x
  2. Step 2: Convert to fraction form
    201,923.65/302,779.36 = 89,555.28/x
  3. Step 3: Cross multiply
    201,923.65x = 302,779.36 × 89,555.28
  4. Step 4: Simplify right side
    201,923.65x = 27,115,490,363.02
  5. Step 5: Solve for x
    x = 27,115,490,363.02/201,923.65
  6. Step 6: Final answer
    x = 134,285.86

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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.