Home / 276,130.98-381,063.04-155,271.22

Finding the Fourth Proportional to 276,130.98, 381,063.04 and 155,271.22

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Solution

The fourth proportional to 276,130.98, 381,063.04 and 155,271.22 is: 214,275.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,130.98 : 381,063.04 = 155,271.22 : x
  2. Step 2: Convert to fraction form
    276,130.98/381,063.04 = 155,271.22/x
  3. Step 3: Cross multiply
    276,130.98x = 381,063.04 × 155,271.22
  4. Step 4: Simplify right side
    276,130.98x = 59,168,123,117.71
  5. Step 5: Solve for x
    x = 59,168,123,117.71/276,130.98
  6. Step 6: Final answer
    x = 214,275.57

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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.