Home / 251,038.12-346,430.82-137,858.60

Finding the Fourth Proportional to 251,038.12, 346,430.82 and 137,858.60

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Solution

The fourth proportional to 251,038.12, 346,430.82 and 137,858.60 is: 190,243.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,038.12 : 346,430.82 = 137,858.60 : x
  2. Step 2: Convert to fraction form
    251,038.12/346,430.82 = 137,858.60/x
  3. Step 3: Cross multiply
    251,038.12x = 346,430.82 × 137,858.60
  4. Step 4: Simplify right side
    251,038.12x = 47,758,467,842.05
  5. Step 5: Solve for x
    x = 47,758,467,842.05/251,038.12
  6. Step 6: Final answer
    x = 190,243.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.