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Finding the Fourth Proportional to 402,533.96, 555,487.52 and 218,768.20

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Solution

The fourth proportional to 402,533.96, 555,487.52 and 218,768.20 is: 301,895.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,533.96 : 555,487.52 = 218,768.20 : x
  2. Step 2: Convert to fraction form
    402,533.96/555,487.52 = 218,768.20/x
  3. Step 3: Cross multiply
    402,533.96x = 555,487.52 × 218,768.20
  4. Step 4: Simplify right side
    402,533.96x = 121,523,002,390.30
  5. Step 5: Solve for x
    x = 121,523,002,390.30/402,533.96
  6. Step 6: Final answer
    x = 301,895.03

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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.