Home / 421,154.82-581,192.25-230,168.16

Finding the Fourth Proportional to 421,154.82, 581,192.25 and 230,168.16

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Solution

The fourth proportional to 421,154.82, 581,192.25 and 230,168.16 is: 317,631.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,154.82 : 581,192.25 = 230,168.16 : x
  2. Step 2: Convert to fraction form
    421,154.82/581,192.25 = 230,168.16/x
  3. Step 3: Cross multiply
    421,154.82x = 581,192.25 × 230,168.16
  4. Step 4: Simplify right side
    421,154.82x = 133,771,949,925.63
  5. Step 5: Solve for x
    x = 133,771,949,925.63/421,154.82
  6. Step 6: Final answer
    x = 317,631.29

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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.