Home / 289,848.20-434,772.30-132,384.20

Finding the Fourth Proportional to 289,848.20, 434,772.30 and 132,384.20

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Solution

The fourth proportional to 289,848.20, 434,772.30 and 132,384.20 is: 198,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,848.20 : 434,772.30 = 132,384.20 : x
  2. Step 2: Convert to fraction form
    289,848.20/434,772.30 = 132,384.20/x
  3. Step 3: Cross multiply
    289,848.20x = 434,772.30 × 132,384.20
  4. Step 4: Simplify right side
    289,848.20x = 57,556,983,117.66
  5. Step 5: Solve for x
    x = 57,556,983,117.66/289,848.20
  6. Step 6: Final answer
    x = 198,576.30

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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.