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Finding the Fourth Proportional to 380,330.72, 569,655.15 and 260,102.73

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Solution

The fourth proportional to 380,330.72, 569,655.15 and 260,102.73 is: 389,579.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,330.72 : 569,655.15 = 260,102.73 : x
  2. Step 2: Convert to fraction form
    380,330.72/569,655.15 = 260,102.73/x
  3. Step 3: Cross multiply
    380,330.72x = 569,655.15 × 260,102.73
  4. Step 4: Simplify right side
    380,330.72x = 148,168,859,673.56
  5. Step 5: Solve for x
    x = 148,168,859,673.56/380,330.72
  6. Step 6: Final answer
    x = 389,579.00

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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.