Home / 213,443.47-294,563.32-122,813.20

Finding the Fourth Proportional to 213,443.47, 294,563.32 and 122,813.20

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Solution

The fourth proportional to 213,443.47, 294,563.32 and 122,813.20 is: 169,488.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,443.47 : 294,563.32 = 122,813.20 : x
  2. Step 2: Convert to fraction form
    213,443.47/294,563.32 = 122,813.20/x
  3. Step 3: Cross multiply
    213,443.47x = 294,563.32 × 122,813.20
  4. Step 4: Simplify right side
    213,443.47x = 36,176,263,931.82
  5. Step 5: Solve for x
    x = 36,176,263,931.82/213,443.47
  6. Step 6: Final answer
    x = 169,488.74

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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.