Home / 289,948.07-434,817.81-100,356.95

Finding the Fourth Proportional to 289,948.07, 434,817.81 and 100,356.95

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Solution

The fourth proportional to 289,948.07, 434,817.81 and 100,356.95 is: 150,499.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,948.07 : 434,817.81 = 100,356.95 : x
  2. Step 2: Convert to fraction form
    289,948.07/434,817.81 = 100,356.95/x
  3. Step 3: Cross multiply
    289,948.07x = 434,817.81 × 100,356.95
  4. Step 4: Simplify right side
    289,948.07x = 43,636,987,043.19
  5. Step 5: Solve for x
    x = 43,636,987,043.19/289,948.07
  6. Step 6: Final answer
    x = 150,499.32

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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.