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Finding the Fourth Proportional to 661,427.32, 992,138.76 and 181,655.56

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Solution

The fourth proportional to 661,427.32, 992,138.76 and 181,655.56 is: 272,482.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,427.32 : 992,138.76 = 181,655.56 : x
  2. Step 2: Convert to fraction form
    661,427.32/992,138.76 = 181,655.56/x
  3. Step 3: Cross multiply
    661,427.32x = 992,138.76 × 181,655.56
  4. Step 4: Simplify right side
    661,427.32x = 180,227,522,045.51
  5. Step 5: Solve for x
    x = 180,227,522,045.51/661,427.32
  6. Step 6: Final answer
    x = 272,482.73

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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.