Home / 306,038.75-422,383.56-254,970.50

Finding the Fourth Proportional to 306,038.75, 422,383.56 and 254,970.50

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Solution

The fourth proportional to 306,038.75, 422,383.56 and 254,970.50 is: 351,901.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,038.75 : 422,383.56 = 254,970.50 : x
  2. Step 2: Convert to fraction form
    306,038.75/422,383.56 = 254,970.50/x
  3. Step 3: Cross multiply
    306,038.75x = 422,383.56 × 254,970.50
  4. Step 4: Simplify right side
    306,038.75x = 107,695,347,484.98
  5. Step 5: Solve for x
    x = 107,695,347,484.98/306,038.75
  6. Step 6: Final answer
    x = 351,901.02

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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.