Home / 282,636.12-390,033.42-155,308.98

Finding the Fourth Proportional to 282,636.12, 390,033.42 and 155,308.98

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Solution

The fourth proportional to 282,636.12, 390,033.42 and 155,308.98 is: 214,323.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,636.12 : 390,033.42 = 155,308.98 : x
  2. Step 2: Convert to fraction form
    282,636.12/390,033.42 = 155,308.98/x
  3. Step 3: Cross multiply
    282,636.12x = 390,033.42 × 155,308.98
  4. Step 4: Simplify right side
    282,636.12x = 60,575,692,626.11
  5. Step 5: Solve for x
    x = 60,575,692,626.11/282,636.12
  6. Step 6: Final answer
    x = 214,323.96

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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.