Home / 486,100.12-729,263.59-166,254.47

Finding the Fourth Proportional to 486,100.12, 729,263.59 and 166,254.47

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Solution

The fourth proportional to 486,100.12, 729,263.59 and 166,254.47 is: 249,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,100.12 : 729,263.59 = 166,254.47 : x
  2. Step 2: Convert to fraction form
    486,100.12/729,263.59 = 166,254.47/x
  3. Step 3: Cross multiply
    486,100.12x = 729,263.59 × 166,254.47
  4. Step 4: Simplify right side
    486,100.12x = 121,243,331,645.75
  5. Step 5: Solve for x
    x = 121,243,331,645.75/486,100.12
  6. Step 6: Final answer
    x = 249,420.49

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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.