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Finding the Fourth Proportional to 380,331.72, 569,656.65 and 260,103.73

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Solution

The fourth proportional to 380,331.72, 569,656.65 and 260,103.73 is: 389,580.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,331.72 : 569,656.65 = 260,103.73 : x
  2. Step 2: Convert to fraction form
    380,331.72/569,656.65 = 260,103.73/x
  3. Step 3: Cross multiply
    380,331.72x = 569,656.65 × 260,103.73
  4. Step 4: Simplify right side
    380,331.72x = 148,169,819,484.31
  5. Step 5: Solve for x
    x = 148,169,819,484.31/380,331.72
  6. Step 6: Final answer
    x = 389,580.49

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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.