Home / 429,054.17-643,608.59-144,773.33

Finding the Fourth Proportional to 429,054.17, 643,608.59 and 144,773.33

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Solution

The fourth proportional to 429,054.17, 643,608.59 and 144,773.33 is: 217,169.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,054.17 : 643,608.59 = 144,773.33 : x
  2. Step 2: Convert to fraction form
    429,054.17/643,608.59 = 144,773.33/x
  3. Step 3: Cross multiply
    429,054.17x = 643,608.59 × 144,773.33
  4. Step 4: Simplify right side
    429,054.17x = 93,177,354,849.00
  5. Step 5: Solve for x
    x = 93,177,354,849.00/429,054.17
  6. Step 6: Final answer
    x = 217,169.21

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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.