Home / 330,269.36-455,853.30-187,113.74

Finding the Fourth Proportional to 330,269.36, 455,853.30 and 187,113.74

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Solution

The fourth proportional to 330,269.36, 455,853.30 and 187,113.74 is: 258,263.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,269.36 : 455,853.30 = 187,113.74 : x
  2. Step 2: Convert to fraction form
    330,269.36/455,853.30 = 187,113.74/x
  3. Step 3: Cross multiply
    330,269.36x = 455,853.30 × 187,113.74
  4. Step 4: Simplify right side
    330,269.36x = 85,296,415,854.34
  5. Step 5: Solve for x
    x = 85,296,415,854.34/330,269.36
  6. Step 6: Final answer
    x = 258,263.18

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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.