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Finding the Fourth Proportional to 246,818.55, 370,239.98 and 128,720.55

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Solution

The fourth proportional to 246,818.55, 370,239.98 and 128,720.55 is: 193,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,818.55 : 370,239.98 = 128,720.55 : x
  2. Step 2: Convert to fraction form
    246,818.55/370,239.98 = 128,720.55/x
  3. Step 3: Cross multiply
    246,818.55x = 370,239.98 × 128,720.55
  4. Step 4: Simplify right side
    246,818.55x = 47,657,493,213.99
  5. Step 5: Solve for x
    x = 47,657,493,213.99/246,818.55
  6. Step 6: Final answer
    x = 193,087.16

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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.