Home / 276,075.19-380,994.78-155,216.10

Finding the Fourth Proportional to 276,075.19, 380,994.78 and 155,216.10

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Solution

The fourth proportional to 276,075.19, 380,994.78 and 155,216.10 is: 214,204.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,075.19 : 380,994.78 = 155,216.10 : x
  2. Step 2: Convert to fraction form
    276,075.19/380,994.78 = 155,216.10/x
  3. Step 3: Cross multiply
    276,075.19x = 380,994.78 × 155,216.10
  4. Step 4: Simplify right side
    276,075.19x = 59,136,523,871.96
  5. Step 5: Solve for x
    x = 59,136,523,871.96/276,075.19
  6. Step 6: Final answer
    x = 214,204.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.