Home / 280,032.81-386,332.37-162,082.15

Finding the Fourth Proportional to 280,032.81, 386,332.37 and 162,082.15

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Solution

The fourth proportional to 280,032.81, 386,332.37 and 162,082.15 is: 223,608.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,032.81 : 386,332.37 = 162,082.15 : x
  2. Step 2: Convert to fraction form
    280,032.81/386,332.37 = 162,082.15/x
  3. Step 3: Cross multiply
    280,032.81x = 386,332.37 × 162,082.15
  4. Step 4: Simplify right side
    280,032.81x = 62,617,579,975.76
  5. Step 5: Solve for x
    x = 62,617,579,975.76/280,032.81
  6. Step 6: Final answer
    x = 223,608.02

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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.