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Finding the Fourth Proportional to 270,590.89, 373,109.84 and 202,389.30

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Solution

The fourth proportional to 270,590.89, 373,109.84 and 202,389.30 is: 279,068.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,590.89 : 373,109.84 = 202,389.30 : x
  2. Step 2: Convert to fraction form
    270,590.89/373,109.84 = 202,389.30/x
  3. Step 3: Cross multiply
    270,590.89x = 373,109.84 × 202,389.30
  4. Step 4: Simplify right side
    270,590.89x = 75,513,439,340.71
  5. Step 5: Solve for x
    x = 75,513,439,340.71/270,590.89
  6. Step 6: Final answer
    x = 279,068.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.