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Finding the Fourth Proportional to 380,691.84, 570,860.48 and 170,331.52

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Solution

The fourth proportional to 380,691.84, 570,860.48 and 170,331.52 is: 255,417.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,691.84 : 570,860.48 = 170,331.52 : x
  2. Step 2: Convert to fraction form
    380,691.84/570,860.48 = 170,331.52/x
  3. Step 3: Cross multiply
    380,691.84x = 570,860.48 × 170,331.52
  4. Step 4: Simplify right side
    380,691.84x = 97,235,533,266.33
  5. Step 5: Solve for x
    x = 97,235,533,266.33/380,691.84
  6. Step 6: Final answer
    x = 255,417.96

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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.