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Finding the Fourth Proportional to 540,389.79, 810,672.77 and 166,412.79

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Solution

The fourth proportional to 540,389.79, 810,672.77 and 166,412.79 is: 249,646.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,389.79 : 810,672.77 = 166,412.79 : x
  2. Step 2: Convert to fraction form
    540,389.79/810,672.77 = 166,412.79/x
  3. Step 3: Cross multiply
    540,389.79x = 810,672.77 × 166,412.79
  4. Step 4: Simplify right side
    540,389.79x = 134,906,317,848.76
  5. Step 5: Solve for x
    x = 134,906,317,848.76/540,389.79
  6. Step 6: Final answer
    x = 249,646.31

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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.