Home / 248,387.85-342,774.27-139,477.05

Finding the Fourth Proportional to 248,387.85, 342,774.27 and 139,477.05

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Solution

The fourth proportional to 248,387.85, 342,774.27 and 139,477.05 is: 192,477.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,387.85 : 342,774.27 = 139,477.05 : x
  2. Step 2: Convert to fraction form
    248,387.85/342,774.27 = 139,477.05/x
  3. Step 3: Cross multiply
    248,387.85x = 342,774.27 × 139,477.05
  4. Step 4: Simplify right side
    248,387.85x = 47,809,142,835.31
  5. Step 5: Solve for x
    x = 47,809,142,835.31/248,387.85
  6. Step 6: Final answer
    x = 192,477.78

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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.