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Finding the Fourth Proportional to 405,130.60, 607,324.38 and 155,624.68

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Solution

The fourth proportional to 405,130.60, 607,324.38 and 155,624.68 is: 233,294.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,130.60 : 607,324.38 = 155,624.68 : x
  2. Step 2: Convert to fraction form
    405,130.60/607,324.38 = 155,624.68/x
  3. Step 3: Cross multiply
    405,130.60x = 607,324.38 × 155,624.68
  4. Step 4: Simplify right side
    405,130.60x = 94,514,662,293.70
  5. Step 5: Solve for x
    x = 94,514,662,293.70/405,130.60
  6. Step 6: Final answer
    x = 233,294.31

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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.