Home / 290,101.23-434,852.51-121,719.33

Finding the Fourth Proportional to 290,101.23, 434,852.51 and 121,719.33

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Solution

The fourth proportional to 290,101.23, 434,852.51 and 121,719.33 is: 182,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,101.23 : 434,852.51 = 121,719.33 : x
  2. Step 2: Convert to fraction form
    290,101.23/434,852.51 = 121,719.33/x
  3. Step 3: Cross multiply
    290,101.23x = 434,852.51 × 121,719.33
  4. Step 4: Simplify right side
    290,101.23x = 52,929,955,557.42
  5. Step 5: Solve for x
    x = 52,929,955,557.42/290,101.23
  6. Step 6: Final answer
    x = 182,453.40

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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.