Home / 276,181.90-381,127.40-155,323.15

Finding the Fourth Proportional to 276,181.90, 381,127.40 and 155,323.15

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Solution

The fourth proportional to 276,181.90, 381,127.40 and 155,323.15 is: 214,343.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,181.90 : 381,127.40 = 155,323.15 : x
  2. Step 2: Convert to fraction form
    276,181.90/381,127.40 = 155,323.15/x
  3. Step 3: Cross multiply
    276,181.90x = 381,127.40 × 155,323.15
  4. Step 4: Simplify right side
    276,181.90x = 59,197,908,319.31
  5. Step 5: Solve for x
    x = 59,197,908,319.31/276,181.90
  6. Step 6: Final answer
    x = 214,343.91

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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.