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Finding the Fourth Proportional to 174,720.80, 262,081.20 and 161,890.40

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Solution

The fourth proportional to 174,720.80, 262,081.20 and 161,890.40 is: 242,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,720.80 : 262,081.20 = 161,890.40 : x
  2. Step 2: Convert to fraction form
    174,720.80/262,081.20 = 161,890.40/x
  3. Step 3: Cross multiply
    174,720.80x = 262,081.20 × 161,890.40
  4. Step 4: Simplify right side
    174,720.80x = 42,428,430,300.48
  5. Step 5: Solve for x
    x = 42,428,430,300.48/174,720.80
  6. Step 6: Final answer
    x = 242,835.60

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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.