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Finding the Fourth Proportional to 236,002.40, 353,420.40 and 156,687.20

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Solution

The fourth proportional to 236,002.40, 353,420.40 and 156,687.20 is: 234,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,002.40 : 353,420.40 = 156,687.20 : x
  2. Step 2: Convert to fraction form
    236,002.40/353,420.40 = 156,687.20/x
  3. Step 3: Cross multiply
    236,002.40x = 353,420.40 × 156,687.20
  4. Step 4: Simplify right side
    236,002.40x = 55,376,452,898.88
  5. Step 5: Solve for x
    x = 55,376,452,898.88/236,002.40
  6. Step 6: Final answer
    x = 234,643.60

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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.