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Finding the Fourth Proportional to 321,817.51, 484,653.41 and 293,087.35

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Solution

The fourth proportional to 321,817.51, 484,653.41 and 293,087.35 is: 441,386.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,817.51 : 484,653.41 = 293,087.35 : x
  2. Step 2: Convert to fraction form
    321,817.51/484,653.41 = 293,087.35/x
  3. Step 3: Cross multiply
    321,817.51x = 484,653.41 × 293,087.35
  4. Step 4: Simplify right side
    321,817.51x = 142,045,782,215.46
  5. Step 5: Solve for x
    x = 142,045,782,215.46/321,817.51
  6. Step 6: Final answer
    x = 441,386.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.