Home / 426,331.02-638,941.22-173,315.98

Finding the Fourth Proportional to 426,331.02, 638,941.22 and 173,315.98

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Solution

The fourth proportional to 426,331.02, 638,941.22 and 173,315.98 is: 259,748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,331.02 : 638,941.22 = 173,315.98 : x
  2. Step 2: Convert to fraction form
    426,331.02/638,941.22 = 173,315.98/x
  3. Step 3: Cross multiply
    426,331.02x = 638,941.22 × 173,315.98
  4. Step 4: Simplify right side
    426,331.02x = 110,738,723,706.70
  5. Step 5: Solve for x
    x = 110,738,723,706.70/426,331.02
  6. Step 6: Final answer
    x = 259,748.22

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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.