Home / 330,111.74-455,565.12-186,868.82

Finding the Fourth Proportional to 330,111.74, 455,565.12 and 186,868.82

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Solution

The fourth proportional to 330,111.74, 455,565.12 and 186,868.82 is: 257,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,111.74 : 455,565.12 = 186,868.82 : x
  2. Step 2: Convert to fraction form
    330,111.74/455,565.12 = 186,868.82/x
  3. Step 3: Cross multiply
    330,111.74x = 455,565.12 × 186,868.82
  4. Step 4: Simplify right side
    330,111.74x = 85,130,916,407.56
  5. Step 5: Solve for x
    x = 85,130,916,407.56/330,111.74
  6. Step 6: Final answer
    x = 257,885.15

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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.