Home / 200,210.79-276,352.40-115,384.35

Finding the Fourth Proportional to 200,210.79, 276,352.40 and 115,384.35

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Solution

The fourth proportional to 200,210.79, 276,352.40 and 115,384.35 is: 159,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,210.79 : 276,352.40 = 115,384.35 : x
  2. Step 2: Convert to fraction form
    200,210.79/276,352.40 = 115,384.35/x
  3. Step 3: Cross multiply
    200,210.79x = 276,352.40 × 115,384.35
  4. Step 4: Simplify right side
    200,210.79x = 31,886,741,468.02
  5. Step 5: Solve for x
    x = 31,886,741,468.02/200,210.79
  6. Step 6: Final answer
    x = 159,265.85

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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.