Home / 279,431.19-385,605.23-152,104.05

Finding the Fourth Proportional to 279,431.19, 385,605.23 and 152,104.05

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Solution

The fourth proportional to 279,431.19, 385,605.23 and 152,104.05 is: 209,898.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,431.19 : 385,605.23 = 152,104.05 : x
  2. Step 2: Convert to fraction form
    279,431.19/385,605.23 = 152,104.05/x
  3. Step 3: Cross multiply
    279,431.19x = 385,605.23 × 152,104.05
  4. Step 4: Simplify right side
    279,431.19x = 58,652,116,423.66
  5. Step 5: Solve for x
    x = 58,652,116,423.66/279,431.19
  6. Step 6: Final answer
    x = 209,898.25

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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.