Home / 228,087.08-342,440.88-128,317.49

Finding the Fourth Proportional to 228,087.08, 342,440.88 and 128,317.49

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Solution

The fourth proportional to 228,087.08, 342,440.88 and 128,317.49 is: 192,650.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,087.08 : 342,440.88 = 128,317.49 : x
  2. Step 2: Convert to fraction form
    228,087.08/342,440.88 = 128,317.49/x
  3. Step 3: Cross multiply
    228,087.08x = 342,440.88 × 128,317.49
  4. Step 4: Simplify right side
    228,087.08x = 43,941,154,194.99
  5. Step 5: Solve for x
    x = 43,941,154,194.99/228,087.08
  6. Step 6: Final answer
    x = 192,650.78

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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.