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Finding the Fourth Proportional to 330,289.33, 455,784.03 and 187,050.40

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Solution

The fourth proportional to 330,289.33, 455,784.03 and 187,050.40 is: 258,120.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,289.33 : 455,784.03 = 187,050.40 : x
  2. Step 2: Convert to fraction form
    330,289.33/455,784.03 = 187,050.40/x
  3. Step 3: Cross multiply
    330,289.33x = 455,784.03 × 187,050.40
  4. Step 4: Simplify right side
    330,289.33x = 85,254,585,125.11
  5. Step 5: Solve for x
    x = 85,254,585,125.11/330,289.33
  6. Step 6: Final answer
    x = 258,120.92

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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.