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Finding the Fourth Proportional to 296,500.80, 444,808.80 and 128,020.80

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Solution

The fourth proportional to 296,500.80, 444,808.80 and 128,020.80 is: 192,056.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,500.80 : 444,808.80 = 128,020.80 : x
  2. Step 2: Convert to fraction form
    296,500.80/444,808.80 = 128,020.80/x
  3. Step 3: Cross multiply
    296,500.80x = 444,808.80 × 128,020.80
  4. Step 4: Simplify right side
    296,500.80x = 56,944,778,423.04
  5. Step 5: Solve for x
    x = 56,944,778,423.04/296,500.80
  6. Step 6: Final answer
    x = 192,056.07

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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.