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Finding the Fourth Proportional to 254,174.51, 380,660.64 and 220,712.72

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Solution

The fourth proportional to 254,174.51, 380,660.64 and 220,712.72 is: 330,547.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,174.51 : 380,660.64 = 220,712.72 : x
  2. Step 2: Convert to fraction form
    254,174.51/380,660.64 = 220,712.72/x
  3. Step 3: Cross multiply
    254,174.51x = 380,660.64 × 220,712.72
  4. Step 4: Simplify right side
    254,174.51x = 84,016,646,352.94
  5. Step 5: Solve for x
    x = 84,016,646,352.94/254,174.51
  6. Step 6: Final answer
    x = 330,547.10

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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.