Home / 180,631.23-249,034.79-155,408.54

Finding the Fourth Proportional to 180,631.23, 249,034.79 and 155,408.54

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Solution

The fourth proportional to 180,631.23, 249,034.79 and 155,408.54 is: 214,260.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,631.23 : 249,034.79 = 155,408.54 : x
  2. Step 2: Convert to fraction form
    180,631.23/249,034.79 = 155,408.54/x
  3. Step 3: Cross multiply
    180,631.23x = 249,034.79 × 155,408.54
  4. Step 4: Simplify right side
    180,631.23x = 38,702,131,683.67
  5. Step 5: Solve for x
    x = 38,702,131,683.67/180,631.23
  6. Step 6: Final answer
    x = 214,260.47

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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.