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Finding the Fourth Proportional to 499,283.80, 749,022.90 and 214,973.80

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Solution

The fourth proportional to 499,283.80, 749,022.90 and 214,973.80 is: 322,502.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,283.80 : 749,022.90 = 214,973.80 : x
  2. Step 2: Convert to fraction form
    499,283.80/749,022.90 = 214,973.80/x
  3. Step 3: Cross multiply
    499,283.80x = 749,022.90 × 214,973.80
  4. Step 4: Simplify right side
    499,283.80x = 161,020,299,100.02
  5. Step 5: Solve for x
    x = 161,020,299,100.02/499,283.80
  6. Step 6: Final answer
    x = 322,502.55

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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.