Home / 276,293.86-381,307.64-155,427.95

Finding the Fourth Proportional to 276,293.86, 381,307.64 and 155,427.95

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Solution

The fourth proportional to 276,293.86, 381,307.64 and 155,427.95 is: 214,503.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,293.86 : 381,307.64 = 155,427.95 : x
  2. Step 2: Convert to fraction form
    276,293.86/381,307.64 = 155,427.95/x
  3. Step 3: Cross multiply
    276,293.86x = 381,307.64 × 155,427.95
  4. Step 4: Simplify right side
    276,293.86x = 59,265,864,980.67
  5. Step 5: Solve for x
    x = 59,265,864,980.67/276,293.86
  6. Step 6: Final answer
    x = 214,503.01

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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.