Home / 205,272.48-307,340.64-105,216.96

Finding the Fourth Proportional to 205,272.48, 307,340.64 and 105,216.96

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Solution

The fourth proportional to 205,272.48, 307,340.64 and 105,216.96 is: 157,534.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,272.48 : 307,340.64 = 105,216.96 : x
  2. Step 2: Convert to fraction form
    205,272.48/307,340.64 = 105,216.96/x
  3. Step 3: Cross multiply
    205,272.48x = 307,340.64 × 105,216.96
  4. Step 4: Simplify right side
    205,272.48x = 32,337,447,825.25
  5. Step 5: Solve for x
    x = 32,337,447,825.25/205,272.48
  6. Step 6: Final answer
    x = 157,534.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.