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Finding the Fourth Proportional to 380,460.56, 570,673.05 and 155,765.45

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Solution

The fourth proportional to 380,460.56, 570,673.05 and 155,765.45 is: 233,640.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,460.56 : 570,673.05 = 155,765.45 : x
  2. Step 2: Convert to fraction form
    380,460.56/570,673.05 = 155,765.45/x
  3. Step 3: Cross multiply
    380,460.56x = 570,673.05 × 155,765.45
  4. Step 4: Simplify right side
    380,460.56x = 88,891,141,582.76
  5. Step 5: Solve for x
    x = 88,891,141,582.76/380,460.56
  6. Step 6: Final answer
    x = 233,640.89

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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.