Home / 422,985.95-634,331.35-170,200.95

Finding the Fourth Proportional to 422,985.95, 634,331.35 and 170,200.95

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Solution

The fourth proportional to 422,985.95, 634,331.35 and 170,200.95 is: 255,242.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,985.95 : 634,331.35 = 170,200.95 : x
  2. Step 2: Convert to fraction form
    422,985.95/634,331.35 = 170,200.95/x
  3. Step 3: Cross multiply
    422,985.95x = 634,331.35 × 170,200.95
  4. Step 4: Simplify right side
    422,985.95x = 107,963,798,384.78
  5. Step 5: Solve for x
    x = 107,963,798,384.78/422,985.95
  6. Step 6: Final answer
    x = 255,242.04

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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.