Home / 226,120.51-312,051.18-129,333.21

Finding the Fourth Proportional to 226,120.51, 312,051.18 and 129,333.21

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Solution

The fourth proportional to 226,120.51, 312,051.18 and 129,333.21 is: 178,482.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,120.51 : 312,051.18 = 129,333.21 : x
  2. Step 2: Convert to fraction form
    226,120.51/312,051.18 = 129,333.21/x
  3. Step 3: Cross multiply
    226,120.51x = 312,051.18 × 129,333.21
  4. Step 4: Simplify right side
    226,120.51x = 40,358,580,108.50
  5. Step 5: Solve for x
    x = 40,358,580,108.50/226,120.51
  6. Step 6: Final answer
    x = 178,482.61

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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.