Home / 280,134.81-386,583.57-152,807.67

Finding the Fourth Proportional to 280,134.81, 386,583.57 and 152,807.67

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Solution

The fourth proportional to 280,134.81, 386,583.57 and 152,807.67 is: 210,873.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,134.81 : 386,583.57 = 152,807.67 : x
  2. Step 2: Convert to fraction form
    280,134.81/386,583.57 = 152,807.67/x
  3. Step 3: Cross multiply
    280,134.81x = 386,583.57 × 152,807.67
  4. Step 4: Simplify right side
    280,134.81x = 59,072,934,591.98
  5. Step 5: Solve for x
    x = 59,072,934,591.98/280,134.81
  6. Step 6: Final answer
    x = 210,873.24

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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.