Home / 282,900.46-390,394.85-155,576.05

Finding the Fourth Proportional to 282,900.46, 390,394.85 and 155,576.05

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Solution

The fourth proportional to 282,900.46, 390,394.85 and 155,576.05 is: 214,690.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,900.46 : 390,394.85 = 155,576.05 : x
  2. Step 2: Convert to fraction form
    282,900.46/390,394.85 = 155,576.05/x
  3. Step 3: Cross multiply
    282,900.46x = 390,394.85 × 155,576.05
  4. Step 4: Simplify right side
    282,900.46x = 60,736,088,413.46
  5. Step 5: Solve for x
    x = 60,736,088,413.46/282,900.46
  6. Step 6: Final answer
    x = 214,690.67

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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.