Home / 213,443.80-319,820.10-134,416.60

Finding the Fourth Proportional to 213,443.80, 319,820.10 and 134,416.60

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Solution

The fourth proportional to 213,443.80, 319,820.10 and 134,416.60 is: 201,407.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,443.80 : 319,820.10 = 134,416.60 : x
  2. Step 2: Convert to fraction form
    213,443.80/319,820.10 = 134,416.60/x
  3. Step 3: Cross multiply
    213,443.80x = 319,820.10 × 134,416.60
  4. Step 4: Simplify right side
    213,443.80x = 42,989,130,453.66
  5. Step 5: Solve for x
    x = 42,989,130,453.66/213,443.80
  6. Step 6: Final answer
    x = 201,407.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.