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Finding the Fourth Proportional to 245,307.34, 338,493.81 and 141,959.26

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Solution

The fourth proportional to 245,307.34, 338,493.81 and 141,959.26 is: 195,886.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,307.34 : 338,493.81 = 141,959.26 : x
  2. Step 2: Convert to fraction form
    245,307.34/338,493.81 = 141,959.26/x
  3. Step 3: Cross multiply
    245,307.34x = 338,493.81 × 141,959.26
  4. Step 4: Simplify right side
    245,307.34x = 48,052,330,782.18
  5. Step 5: Solve for x
    x = 48,052,330,782.18/245,307.34
  6. Step 6: Final answer
    x = 195,886.23

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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.