Home / 421,020.39-581,007.15-230,035.23

Finding the Fourth Proportional to 421,020.39, 581,007.15 and 230,035.23

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Solution

The fourth proportional to 421,020.39, 581,007.15 and 230,035.23 is: 317,448.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,020.39 : 581,007.15 = 230,035.23 : x
  2. Step 2: Convert to fraction form
    421,020.39/581,007.15 = 230,035.23/x
  3. Step 3: Cross multiply
    421,020.39x = 581,007.15 × 230,035.23
  4. Step 4: Simplify right side
    421,020.39x = 133,652,113,381.90
  5. Step 5: Solve for x
    x = 133,652,113,381.90/421,020.39
  6. Step 6: Final answer
    x = 317,448.08

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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.