Home / 432,513.12-648,536.40-166,340.64

Finding the Fourth Proportional to 432,513.12, 648,536.40 and 166,340.64

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Solution

The fourth proportional to 432,513.12, 648,536.40 and 166,340.64 is: 249,421.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,513.12 : 648,536.40 = 166,340.64 : x
  2. Step 2: Convert to fraction form
    432,513.12/648,536.40 = 166,340.64/x
  3. Step 3: Cross multiply
    432,513.12x = 648,536.40 × 166,340.64
  4. Step 4: Simplify right side
    432,513.12x = 107,877,959,839.30
  5. Step 5: Solve for x
    x = 107,877,959,839.30/432,513.12
  6. Step 6: Final answer
    x = 249,421.24

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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.