Home / 429,969.05-645,031.13-177,111.51

Finding the Fourth Proportional to 429,969.05, 645,031.13 and 177,111.51

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Solution

The fourth proportional to 429,969.05, 645,031.13 and 177,111.51 is: 265,699.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,969.05 : 645,031.13 = 177,111.51 : x
  2. Step 2: Convert to fraction form
    429,969.05/645,031.13 = 177,111.51/x
  3. Step 3: Cross multiply
    429,969.05x = 645,031.13 × 177,111.51
  4. Step 4: Simplify right side
    429,969.05x = 114,242,436,545.75
  5. Step 5: Solve for x
    x = 114,242,436,545.75/429,969.05
  6. Step 6: Final answer
    x = 265,699.21

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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.