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Finding the Fourth Proportional to 369,980.60, 554,727.90 and 145,205.60

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Solution

The fourth proportional to 369,980.60, 554,727.90 and 145,205.60 is: 217,713.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,980.60 : 554,727.90 = 145,205.60 : x
  2. Step 2: Convert to fraction form
    369,980.60/554,727.90 = 145,205.60/x
  3. Step 3: Cross multiply
    369,980.60x = 554,727.90 × 145,205.60
  4. Step 4: Simplify right side
    369,980.60x = 80,549,597,556.24
  5. Step 5: Solve for x
    x = 80,549,597,556.24/369,980.60
  6. Step 6: Final answer
    x = 217,713.03

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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.