Home / 321,985.51-482,962.67-122,290.31

Finding the Fourth Proportional to 321,985.51, 482,962.67 and 122,290.31

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Solution

The fourth proportional to 321,985.51, 482,962.67 and 122,290.31 is: 183,429.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,985.51 : 482,962.67 = 122,290.31 : x
  2. Step 2: Convert to fraction form
    321,985.51/482,962.67 = 122,290.31/x
  3. Step 3: Cross multiply
    321,985.51x = 482,962.67 × 122,290.31
  4. Step 4: Simplify right side
    321,985.51x = 59,061,652,898.05
  5. Step 5: Solve for x
    x = 59,061,652,898.05/321,985.51
  6. Step 6: Final answer
    x = 183,429.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.