Home / 273,869.10-377,905.10-153,005.76

Finding the Fourth Proportional to 273,869.10, 377,905.10 and 153,005.76

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Solution

The fourth proportional to 273,869.10, 377,905.10 and 153,005.76 is: 211,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,869.10 : 377,905.10 = 153,005.76 : x
  2. Step 2: Convert to fraction form
    273,869.10/377,905.10 = 153,005.76/x
  3. Step 3: Cross multiply
    273,869.10x = 377,905.10 × 153,005.76
  4. Step 4: Simplify right side
    273,869.10x = 57,821,656,268.35
  5. Step 5: Solve for x
    x = 57,821,656,268.35/273,869.10
  6. Step 6: Final answer
    x = 211,128.81

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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.