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Finding the Fourth Proportional to 153,520.20, 230,064.30 and 121,984.20

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Solution

The fourth proportional to 153,520.20, 230,064.30 and 121,984.20 is: 182,804.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,520.20 : 230,064.30 = 121,984.20 : x
  2. Step 2: Convert to fraction form
    153,520.20/230,064.30 = 121,984.20/x
  3. Step 3: Cross multiply
    153,520.20x = 230,064.30 × 121,984.20
  4. Step 4: Simplify right side
    153,520.20x = 28,064,209,584.06
  5. Step 5: Solve for x
    x = 28,064,209,584.06/153,520.20
  6. Step 6: Final answer
    x = 182,804.67

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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.