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Finding the Fourth Proportional to 165,688.80, 248,574.60 and 53,379.60

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Solution

The fourth proportional to 165,688.80, 248,574.60 and 53,379.60 is: 80,082.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,688.80 : 248,574.60 = 53,379.60 : x
  2. Step 2: Convert to fraction form
    165,688.80/248,574.60 = 53,379.60/x
  3. Step 3: Cross multiply
    165,688.80x = 248,574.60 × 53,379.60
  4. Step 4: Simplify right side
    165,688.80x = 13,268,812,718.16
  5. Step 5: Solve for x
    x = 13,268,812,718.16/165,688.80
  6. Step 6: Final answer
    x = 80,082.74

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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.