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Finding the Fourth Proportional to 245,085.48, 367,366.84 and 139,677.48

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Solution

The fourth proportional to 245,085.48, 367,366.84 and 139,677.48 is: 209,367.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,085.48 : 367,366.84 = 139,677.48 : x
  2. Step 2: Convert to fraction form
    245,085.48/367,366.84 = 139,677.48/x
  3. Step 3: Cross multiply
    245,085.48x = 367,366.84 × 139,677.48
  4. Step 4: Simplify right side
    245,085.48x = 51,312,874,446.76
  5. Step 5: Solve for x
    x = 51,312,874,446.76/245,085.48
  6. Step 6: Final answer
    x = 209,367.26

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1.5x scale

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.