Home / 308,989.08-426,184.65-283,577.36

Finding the Fourth Proportional to 308,989.08, 426,184.65 and 283,577.36

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Solution

The fourth proportional to 308,989.08, 426,184.65 and 283,577.36 is: 391,134.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,989.08 : 426,184.65 = 283,577.36 : x
  2. Step 2: Convert to fraction form
    308,989.08/426,184.65 = 283,577.36/x
  3. Step 3: Cross multiply
    308,989.08x = 426,184.65 × 283,577.36
  4. Step 4: Simplify right side
    308,989.08x = 120,856,316,501.64
  5. Step 5: Solve for x
    x = 120,856,316,501.64/308,989.08
  6. Step 6: Final answer
    x = 391,134.59

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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.