Home / 221,940.48-306,279.36-121,340.16

Finding the Fourth Proportional to 221,940.48, 306,279.36 and 121,340.16

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Solution

The fourth proportional to 221,940.48, 306,279.36 and 121,340.16 is: 167,450.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,940.48 : 306,279.36 = 121,340.16 : x
  2. Step 2: Convert to fraction form
    221,940.48/306,279.36 = 121,340.16/x
  3. Step 3: Cross multiply
    221,940.48x = 306,279.36 × 121,340.16
  4. Step 4: Simplify right side
    221,940.48x = 37,163,986,547.10
  5. Step 5: Solve for x
    x = 37,163,986,547.10/221,940.48
  6. Step 6: Final answer
    x = 167,450.24

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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.