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Finding the Fourth Proportional to 356,958.72, 535,439.92 and 120,303.45

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Solution

The fourth proportional to 356,958.72, 535,439.92 and 120,303.45 is: 180,455.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,958.72 : 535,439.92 = 120,303.45 : x
  2. Step 2: Convert to fraction form
    356,958.72/535,439.92 = 120,303.45/x
  3. Step 3: Cross multiply
    356,958.72x = 535,439.92 × 120,303.45
  4. Step 4: Simplify right side
    356,958.72x = 64,415,266,365.01
  5. Step 5: Solve for x
    x = 64,415,266,365.01/356,958.72
  6. Step 6: Final answer
    x = 180,455.79

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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.