Home / 289,642.20-434,463.30-147,924.60

Finding the Fourth Proportional to 289,642.20, 434,463.30 and 147,924.60

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Solution

The fourth proportional to 289,642.20, 434,463.30 and 147,924.60 is: 221,886.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,642.20 : 434,463.30 = 147,924.60 : x
  2. Step 2: Convert to fraction form
    289,642.20/434,463.30 = 147,924.60/x
  3. Step 3: Cross multiply
    289,642.20x = 434,463.30 × 147,924.60
  4. Step 4: Simplify right side
    289,642.20x = 64,267,809,867.18
  5. Step 5: Solve for x
    x = 64,267,809,867.18/289,642.20
  6. Step 6: Final answer
    x = 221,886.90

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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.