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Finding the Fourth Proportional to 405,130.35, 607,324.01 and 155,624.43

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Solution

The fourth proportional to 405,130.35, 607,324.01 and 155,624.43 is: 233,293.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,130.35 : 607,324.01 = 155,624.43 : x
  2. Step 2: Convert to fraction form
    405,130.35/607,324.01 = 155,624.43/x
  3. Step 3: Cross multiply
    405,130.35x = 607,324.01 × 155,624.43
  4. Step 4: Simplify right side
    405,130.35x = 94,514,452,103.44
  5. Step 5: Solve for x
    x = 94,514,452,103.44/405,130.35
  6. Step 6: Final answer
    x = 233,293.93

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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.