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Finding the Fourth Proportional to 328,501.80, 492,752.70 and 216,308.70

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Solution

The fourth proportional to 328,501.80, 492,752.70 and 216,308.70 is: 324,463.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,501.80 : 492,752.70 = 216,308.70 : x
  2. Step 2: Convert to fraction form
    328,501.80/492,752.70 = 216,308.70/x
  3. Step 3: Cross multiply
    328,501.80x = 492,752.70 × 216,308.70
  4. Step 4: Simplify right side
    328,501.80x = 106,586,695,958.49
  5. Step 5: Solve for x
    x = 106,586,695,958.49/328,501.80
  6. Step 6: Final answer
    x = 324,463.05

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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.