Home / 289,852.20-434,972.70-171,397.80

Finding the Fourth Proportional to 289,852.20, 434,972.70 and 171,397.80

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Solution

The fourth proportional to 289,852.20, 434,972.70 and 171,397.80 is: 257,211.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,852.20 : 434,972.70 = 171,397.80 : x
  2. Step 2: Convert to fraction form
    289,852.20/434,972.70 = 171,397.80/x
  3. Step 3: Cross multiply
    289,852.20x = 434,972.70 × 171,397.80
  4. Step 4: Simplify right side
    289,852.20x = 74,553,363,840.06
  5. Step 5: Solve for x
    x = 74,553,363,840.06/289,852.20
  6. Step 6: Final answer
    x = 257,211.65

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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.