Home / 279,007.38-385,032.69-151,683.21

Finding the Fourth Proportional to 279,007.38, 385,032.69 and 151,683.21

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Solution

The fourth proportional to 279,007.38, 385,032.69 and 151,683.21 is: 209,324.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,007.38 : 385,032.69 = 151,683.21 : x
  2. Step 2: Convert to fraction form
    279,007.38/385,032.69 = 151,683.21/x
  3. Step 3: Cross multiply
    279,007.38x = 385,032.69 × 151,683.21
  4. Step 4: Simplify right side
    279,007.38x = 58,402,994,374.13
  5. Step 5: Solve for x
    x = 58,402,994,374.13/279,007.38
  6. Step 6: Final answer
    x = 209,324.19

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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.