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Finding the Fourth Proportional to 279,488.93, 385,694.19 and 152,164.22

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Solution

The fourth proportional to 279,488.93, 385,694.19 and 152,164.22 is: 209,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,488.93 : 385,694.19 = 152,164.22 : x
  2. Step 2: Convert to fraction form
    279,488.93/385,694.19 = 152,164.22/x
  3. Step 3: Cross multiply
    279,488.93x = 385,694.19 × 152,164.22
  4. Step 4: Simplify right side
    279,488.93x = 58,688,853,651.41
  5. Step 5: Solve for x
    x = 58,688,853,651.41/279,488.93
  6. Step 6: Final answer
    x = 209,986.33

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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.