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Finding the Fourth Proportional to 276,075.48, 380,981.90 and 174,166.76

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Solution

The fourth proportional to 276,075.48, 380,981.90 and 174,166.76 is: 240,348.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,075.48 : 380,981.90 = 174,166.76 : x
  2. Step 2: Convert to fraction form
    276,075.48/380,981.90 = 174,166.76/x
  3. Step 3: Cross multiply
    276,075.48x = 380,981.90 × 174,166.76
  4. Step 4: Simplify right side
    276,075.48x = 66,354,380,365.90
  5. Step 5: Solve for x
    x = 66,354,380,365.90/276,075.48
  6. Step 6: Final answer
    x = 240,348.69

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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.