Home / 319,288.21-478,969.37-106,075.15

Finding the Fourth Proportional to 319,288.21, 478,969.37 and 106,075.15

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Solution

The fourth proportional to 319,288.21, 478,969.37 and 106,075.15 is: 159,125.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,288.21 : 478,969.37 = 106,075.15 : x
  2. Step 2: Convert to fraction form
    319,288.21/478,969.37 = 106,075.15/x
  3. Step 3: Cross multiply
    319,288.21x = 478,969.37 × 106,075.15
  4. Step 4: Simplify right side
    319,288.21x = 50,806,746,438.14
  5. Step 5: Solve for x
    x = 50,806,746,438.14/319,288.21
  6. Step 6: Final answer
    x = 159,125.03

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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.