Home / 355,252.50-490,467.15-228,152.16

Finding the Fourth Proportional to 355,252.50, 490,467.15 and 228,152.16

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Solution

The fourth proportional to 355,252.50, 490,467.15 and 228,152.16 is: 314,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,252.50 : 490,467.15 = 228,152.16 : x
  2. Step 2: Convert to fraction form
    355,252.50/490,467.15 = 228,152.16/x
  3. Step 3: Cross multiply
    355,252.50x = 490,467.15 × 228,152.16
  4. Step 4: Simplify right side
    355,252.50x = 111,901,139,681.54
  5. Step 5: Solve for x
    x = 111,901,139,681.54/355,252.50
  6. Step 6: Final answer
    x = 314,990.44

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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.