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Finding the Fourth Proportional to 317,636.08, 438,280.60 and 179,814.08

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Solution

The fourth proportional to 317,636.08, 438,280.60 and 179,814.08 is: 248,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,636.08 : 438,280.60 = 179,814.08 : x
  2. Step 2: Convert to fraction form
    317,636.08/438,280.60 = 179,814.08/x
  3. Step 3: Cross multiply
    317,636.08x = 438,280.60 × 179,814.08
  4. Step 4: Simplify right side
    317,636.08x = 78,809,022,870.85
  5. Step 5: Solve for x
    x = 78,809,022,870.85/317,636.08
  6. Step 6: Final answer
    x = 248,111.05

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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.