Home / 321,823.80-482,612.10-153,214.20

Finding the Fourth Proportional to 321,823.80, 482,612.10 and 153,214.20

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Solution

The fourth proportional to 321,823.80, 482,612.10 and 153,214.20 is: 229,762.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,823.80 : 482,612.10 = 153,214.20 : x
  2. Step 2: Convert to fraction form
    321,823.80/482,612.10 = 153,214.20/x
  3. Step 3: Cross multiply
    321,823.80x = 482,612.10 × 153,214.20
  4. Step 4: Simplify right side
    321,823.80x = 73,943,026,811.82
  5. Step 5: Solve for x
    x = 73,943,026,811.82/321,823.80
  6. Step 6: Final answer
    x = 229,762.46

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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.