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Finding the Fourth Proportional to 229,043.58, 316,079.19 and 139,619.58

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Solution

The fourth proportional to 229,043.58, 316,079.19 and 139,619.58 is: 192,674.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,043.58 : 316,079.19 = 139,619.58 : x
  2. Step 2: Convert to fraction form
    229,043.58/316,079.19 = 139,619.58/x
  3. Step 3: Cross multiply
    229,043.58x = 316,079.19 × 139,619.58
  4. Step 4: Simplify right side
    229,043.58x = 44,130,843,754.54
  5. Step 5: Solve for x
    x = 44,130,843,754.54/229,043.58
  6. Step 6: Final answer
    x = 192,674.44

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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.