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Finding the Fourth Proportional to 163,601.20, 245,401.80 and 162,564.40

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Solution

The fourth proportional to 163,601.20, 245,401.80 and 162,564.40 is: 243,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,601.20 : 245,401.80 = 162,564.40 : x
  2. Step 2: Convert to fraction form
    163,601.20/245,401.80 = 162,564.40/x
  3. Step 3: Cross multiply
    163,601.20x = 245,401.80 × 162,564.40
  4. Step 4: Simplify right side
    163,601.20x = 39,893,596,375.92
  5. Step 5: Solve for x
    x = 39,893,596,375.92/163,601.20
  6. Step 6: Final answer
    x = 243,846.60

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1.5x scale

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.