Home / 290,452.72-434,746.68-155,178.75

Finding the Fourth Proportional to 290,452.72, 434,746.68 and 155,178.75

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Solution

The fourth proportional to 290,452.72, 434,746.68 and 155,178.75 is: 232,269.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,452.72 : 434,746.68 = 155,178.75 : x
  2. Step 2: Convert to fraction form
    290,452.72/434,746.68 = 155,178.75/x
  3. Step 3: Cross multiply
    290,452.72x = 434,746.68 × 155,178.75
  4. Step 4: Simplify right side
    290,452.72x = 67,463,444,195.32
  5. Step 5: Solve for x
    x = 67,463,444,195.32/290,452.72
  6. Step 6: Final answer
    x = 232,269.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.