Home / 429,034.96-643,590.26-159,166.22

Finding the Fourth Proportional to 429,034.96, 643,590.26 and 159,166.22

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Solution

The fourth proportional to 429,034.96, 643,590.26 and 159,166.22 is: 238,763.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,034.96 : 643,590.26 = 159,166.22 : x
  2. Step 2: Convert to fraction form
    429,034.96/643,590.26 = 159,166.22/x
  3. Step 3: Cross multiply
    429,034.96x = 643,590.26 × 159,166.22
  4. Step 4: Simplify right side
    429,034.96x = 102,437,828,117.19
  5. Step 5: Solve for x
    x = 102,437,828,117.19/429,034.96
  6. Step 6: Final answer
    x = 238,763.36

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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.