Home / 289,338.48-434,028.56-99,796.18

Finding the Fourth Proportional to 289,338.48, 434,028.56 and 99,796.18

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Solution

The fourth proportional to 289,338.48, 434,028.56 and 99,796.18 is: 149,701.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,338.48 : 434,028.56 = 99,796.18 : x
  2. Step 2: Convert to fraction form
    289,338.48/434,028.56 = 99,796.18/x
  3. Step 3: Cross multiply
    289,338.48x = 434,028.56 × 99,796.18
  4. Step 4: Simplify right side
    289,338.48x = 43,314,392,298.90
  5. Step 5: Solve for x
    x = 43,314,392,298.90/289,338.48
  6. Step 6: Final answer
    x = 149,701.46

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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.