Home / 369,986.60-554,736.90-145,211.60

Finding the Fourth Proportional to 369,986.60, 554,736.90 and 145,211.60

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Solution

The fourth proportional to 369,986.60, 554,736.90 and 145,211.60 is: 217,722.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,986.60 : 554,736.90 = 145,211.60 : x
  2. Step 2: Convert to fraction form
    369,986.60/554,736.90 = 145,211.60/x
  3. Step 3: Cross multiply
    369,986.60x = 554,736.90 × 145,211.60
  4. Step 4: Simplify right side
    369,986.60x = 80,554,232,828.04
  5. Step 5: Solve for x
    x = 80,554,232,828.04/369,986.60
  6. Step 6: Final answer
    x = 217,722.03

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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.