Home / 258,289.08-356,442.32-156,313.32

Finding the Fourth Proportional to 258,289.08, 356,442.32 and 156,313.32

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Solution

The fourth proportional to 258,289.08, 356,442.32 and 156,313.32 is: 215,714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,289.08 : 356,442.32 = 156,313.32 : x
  2. Step 2: Convert to fraction form
    258,289.08/356,442.32 = 156,313.32/x
  3. Step 3: Cross multiply
    258,289.08x = 356,442.32 × 156,313.32
  4. Step 4: Simplify right side
    258,289.08x = 55,716,682,427.70
  5. Step 5: Solve for x
    x = 55,716,682,427.70/258,289.08
  6. Step 6: Final answer
    x = 215,714.43

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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.