Home / 245,484.29-338,763-142,122.85

Finding the Fourth Proportional to 245,484.29, 338,763 and 142,122.85

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Solution

The fourth proportional to 245,484.29, 338,763 and 142,122.85 is: 196,126.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,484.29 : 338,763 = 142,122.85 : x
  2. Step 2: Convert to fraction form
    245,484.29/338,763 = 142,122.85/x
  3. Step 3: Cross multiply
    245,484.29x = 338,763 × 142,122.85
  4. Step 4: Simplify right side
    245,484.29x = 48,145,963,034.55
  5. Step 5: Solve for x
    x = 48,145,963,034.55/245,484.29
  6. Step 6: Final answer
    x = 196,126.45

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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.