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Finding the Fourth Proportional to 270,495.87, 373,242.27 and 155,779.35

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Solution

The fourth proportional to 270,495.87, 373,242.27 and 155,779.35 is: 214,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,495.87 : 373,242.27 = 155,779.35 : x
  2. Step 2: Convert to fraction form
    270,495.87/373,242.27 = 155,779.35/x
  3. Step 3: Cross multiply
    270,495.87x = 373,242.27 × 155,779.35
  4. Step 4: Simplify right side
    270,495.87x = 58,143,438,213.12
  5. Step 5: Solve for x
    x = 58,143,438,213.12/270,495.87
  6. Step 6: Final answer
    x = 214,951.30

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1.5x scale

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.