Home / 429,001.09-643,671.12-162,832.25

Finding the Fourth Proportional to 429,001.09, 643,671.12 and 162,832.25

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Solution

The fourth proportional to 429,001.09, 643,671.12 and 162,832.25 is: 244,312.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,001.09 : 643,671.12 = 162,832.25 : x
  2. Step 2: Convert to fraction form
    429,001.09/643,671.12 = 162,832.25/x
  3. Step 3: Cross multiply
    429,001.09x = 643,671.12 × 162,832.25
  4. Step 4: Simplify right side
    429,001.09x = 104,810,415,915.46
  5. Step 5: Solve for x
    x = 104,810,415,915.46/429,001.09
  6. Step 6: Final answer
    x = 244,312.71

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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.