Home / 282,980.04-390,522.80-155,665.32

Finding the Fourth Proportional to 282,980.04, 390,522.80 and 155,665.32

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Solution

The fourth proportional to 282,980.04, 390,522.80 and 155,665.32 is: 214,823.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,980.04 : 390,522.80 = 155,665.32 : x
  2. Step 2: Convert to fraction form
    282,980.04/390,522.80 = 155,665.32/x
  3. Step 3: Cross multiply
    282,980.04x = 390,522.80 × 155,665.32
  4. Step 4: Simplify right side
    282,980.04x = 60,790,856,629.30
  5. Step 5: Solve for x
    x = 60,790,856,629.30/282,980.04
  6. Step 6: Final answer
    x = 214,823.83

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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.