Home / 213,275.12-294,317.22-122,631.45

Finding the Fourth Proportional to 213,275.12, 294,317.22 and 122,631.45

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Solution

The fourth proportional to 213,275.12, 294,317.22 and 122,631.45 is: 169,229.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,275.12 : 294,317.22 = 122,631.45 : x
  2. Step 2: Convert to fraction form
    213,275.12/294,317.22 = 122,631.45/x
  3. Step 3: Cross multiply
    213,275.12x = 294,317.22 × 122,631.45
  4. Step 4: Simplify right side
    213,275.12x = 36,092,547,448.57
  5. Step 5: Solve for x
    x = 36,092,547,448.57/213,275.12
  6. Step 6: Final answer
    x = 169,229.99

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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.