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Finding the Fourth Proportional to 298,056.72, 411,283.80 and 170,724.72

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Solution

The fourth proportional to 298,056.72, 411,283.80 and 170,724.72 is: 235,580.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,056.72 : 411,283.80 = 170,724.72 : x
  2. Step 2: Convert to fraction form
    298,056.72/411,283.80 = 170,724.72/x
  3. Step 3: Cross multiply
    298,056.72x = 411,283.80 × 170,724.72
  4. Step 4: Simplify right side
    298,056.72x = 70,216,311,595.54
  5. Step 5: Solve for x
    x = 70,216,311,595.54/298,056.72
  6. Step 6: Final answer
    x = 235,580.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.