Home / 330,031.92-455,444.01-179,128.92

Finding the Fourth Proportional to 330,031.92, 455,444.01 and 179,128.92

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Solution

The fourth proportional to 330,031.92, 455,444.01 and 179,128.92 is: 247,197.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,031.92 : 455,444.01 = 179,128.92 : x
  2. Step 2: Convert to fraction form
    330,031.92/455,444.01 = 179,128.92/x
  3. Step 3: Cross multiply
    330,031.92x = 455,444.01 × 179,128.92
  4. Step 4: Simplify right side
    330,031.92x = 81,583,193,631.77
  5. Step 5: Solve for x
    x = 81,583,193,631.77/330,031.92
  6. Step 6: Final answer
    x = 247,197.89

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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.