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Finding the Fourth Proportional to 355,383.04, 532,810.56 and 215,108.80

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Solution

The fourth proportional to 355,383.04, 532,810.56 and 215,108.80 is: 322,503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,383.04 : 532,810.56 = 215,108.80 : x
  2. Step 2: Convert to fraction form
    355,383.04/532,810.56 = 215,108.80/x
  3. Step 3: Cross multiply
    355,383.04x = 532,810.56 × 215,108.80
  4. Step 4: Simplify right side
    355,383.04x = 114,612,240,188.93
  5. Step 5: Solve for x
    x = 114,612,240,188.93/355,383.04
  6. Step 6: Final answer
    x = 322,503.40

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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.