Home / 266,530.56-399,660-88,973.76

Finding the Fourth Proportional to 266,530.56, 399,660 and 88,973.76

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Solution

The fourth proportional to 266,530.56, 399,660 and 88,973.76 is: 133,415.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,530.56 : 399,660 = 88,973.76 : x
  2. Step 2: Convert to fraction form
    266,530.56/399,660 = 88,973.76/x
  3. Step 3: Cross multiply
    266,530.56x = 399,660 × 88,973.76
  4. Step 4: Simplify right side
    266,530.56x = 35,559,252,921.60
  5. Step 5: Solve for x
    x = 35,559,252,921.60/266,530.56
  6. Step 6: Final answer
    x = 133,415.29

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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.