Home / 309,004.22-426,205.35-283,592.49

Finding the Fourth Proportional to 309,004.22, 426,205.35 and 283,592.49

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Solution

The fourth proportional to 309,004.22, 426,205.35 and 283,592.49 is: 391,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,004.22 : 426,205.35 = 283,592.49 : x
  2. Step 2: Convert to fraction form
    309,004.22/426,205.35 = 283,592.49/x
  3. Step 3: Cross multiply
    309,004.22x = 426,205.35 × 283,592.49
  4. Step 4: Simplify right side
    309,004.22x = 120,868,636,457.82
  5. Step 5: Solve for x
    x = 120,868,636,457.82/309,004.22
  6. Step 6: Final answer
    x = 391,155.30

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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.