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Finding the Fourth Proportional to 328,206.72, 452,914.56 and 207,412.80

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Solution

The fourth proportional to 328,206.72, 452,914.56 and 207,412.80 is: 286,222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,206.72 : 452,914.56 = 207,412.80 : x
  2. Step 2: Convert to fraction form
    328,206.72/452,914.56 = 207,412.80/x
  3. Step 3: Cross multiply
    328,206.72x = 452,914.56 × 207,412.80
  4. Step 4: Simplify right side
    328,206.72x = 93,940,277,050.37
  5. Step 5: Solve for x
    x = 93,940,277,050.37/328,206.72
  6. Step 6: Final answer
    x = 286,222.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.