Home / 421,077.78-581,088.84-230,091.18

Finding the Fourth Proportional to 421,077.78, 581,088.84 and 230,091.18

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Solution

The fourth proportional to 421,077.78, 581,088.84 and 230,091.18 is: 317,526.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,077.78 : 581,088.84 = 230,091.18 : x
  2. Step 2: Convert to fraction form
    421,077.78/581,088.84 = 230,091.18/x
  3. Step 3: Cross multiply
    421,077.78x = 581,088.84 × 230,091.18
  4. Step 4: Simplify right side
    421,077.78x = 133,703,416,880.43
  5. Step 5: Solve for x
    x = 133,703,416,880.43/421,077.78
  6. Step 6: Final answer
    x = 317,526.65

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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.