Home / 282,811.32-390,280.62-155,494.92

Finding the Fourth Proportional to 282,811.32, 390,280.62 and 155,494.92

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Solution

The fourth proportional to 282,811.32, 390,280.62 and 155,494.92 is: 214,583.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,811.32 : 390,280.62 = 155,494.92 : x
  2. Step 2: Convert to fraction form
    282,811.32/390,280.62 = 155,494.92/x
  3. Step 3: Cross multiply
    282,811.32x = 390,280.62 × 155,494.92
  4. Step 4: Simplify right side
    282,811.32x = 60,686,653,784.45
  5. Step 5: Solve for x
    x = 60,686,653,784.45/282,811.32
  6. Step 6: Final answer
    x = 214,583.54

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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.