Home / 245,877.26-339,307.38-138,457.89

Finding the Fourth Proportional to 245,877.26, 339,307.38 and 138,457.89

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Solution

The fourth proportional to 245,877.26, 339,307.38 and 138,457.89 is: 191,070.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,877.26 : 339,307.38 = 138,457.89 : x
  2. Step 2: Convert to fraction form
    245,877.26/339,307.38 = 138,457.89/x
  3. Step 3: Cross multiply
    245,877.26x = 339,307.38 × 138,457.89
  4. Step 4: Simplify right side
    245,877.26x = 46,979,783,896.23
  5. Step 5: Solve for x
    x = 46,979,783,896.23/245,877.26
  6. Step 6: Final answer
    x = 191,070.07

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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.