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Finding the Fourth Proportional to 421,017.39, 581,003.01 and 230,032.22

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Solution

The fourth proportional to 421,017.39, 581,003.01 and 230,032.22 is: 317,443.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,017.39 : 581,003.01 = 230,032.22 : x
  2. Step 2: Convert to fraction form
    421,017.39/581,003.01 = 230,032.22/x
  3. Step 3: Cross multiply
    421,017.39x = 581,003.01 × 230,032.22
  4. Step 4: Simplify right side
    421,017.39x = 133,649,409,311.97
  5. Step 5: Solve for x
    x = 133,649,409,311.97/421,017.39
  6. Step 6: Final answer
    x = 317,443.92

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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.