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Finding the Fourth Proportional to 288,003.30, 432,004.95 and 100,947.30

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Solution

The fourth proportional to 288,003.30, 432,004.95 and 100,947.30 is: 151,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,003.30 : 432,004.95 = 100,947.30 : x
  2. Step 2: Convert to fraction form
    288,003.30/432,004.95 = 100,947.30/x
  3. Step 3: Cross multiply
    288,003.30x = 432,004.95 × 100,947.30
  4. Step 4: Simplify right side
    288,003.30x = 43,609,733,289.14
  5. Step 5: Solve for x
    x = 43,609,733,289.14/288,003.30
  6. Step 6: Final answer
    x = 151,420.95

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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.