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Finding the Fourth Proportional to 305,674.35, 458,302.38 and 155,624.28

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Solution

The fourth proportional to 305,674.35, 458,302.38 and 155,624.28 is: 233,329.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,674.35 : 458,302.38 = 155,624.28 : x
  2. Step 2: Convert to fraction form
    305,674.35/458,302.38 = 155,624.28/x
  3. Step 3: Cross multiply
    305,674.35x = 458,302.38 × 155,624.28
  4. Step 4: Simplify right side
    305,674.35x = 71,322,977,909.79
  5. Step 5: Solve for x
    x = 71,322,977,909.79/305,674.35
  6. Step 6: Final answer
    x = 233,329.94

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1.5x scale

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.