Home / 385,020.98-577,571.06-145,336.76

Finding the Fourth Proportional to 385,020.98, 577,571.06 and 145,336.76

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Solution

The fourth proportional to 385,020.98, 577,571.06 and 145,336.76 is: 218,020.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,020.98 : 577,571.06 = 145,336.76 : x
  2. Step 2: Convert to fraction form
    385,020.98/577,571.06 = 145,336.76/x
  3. Step 3: Cross multiply
    385,020.98x = 577,571.06 × 145,336.76
  4. Step 4: Simplify right side
    385,020.98x = 83,942,302,915.63
  5. Step 5: Solve for x
    x = 83,942,302,915.63/385,020.98
  6. Step 6: Final answer
    x = 218,020.08

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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.