Home / 251,535.04-347,111.10-138,357.78

Finding the Fourth Proportional to 251,535.04, 347,111.10 and 138,357.78

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Solution

The fourth proportional to 251,535.04, 347,111.10 and 138,357.78 is: 190,929.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,535.04 : 347,111.10 = 138,357.78 : x
  2. Step 2: Convert to fraction form
    251,535.04/347,111.10 = 138,357.78/x
  3. Step 3: Cross multiply
    251,535.04x = 347,111.10 × 138,357.78
  4. Step 4: Simplify right side
    251,535.04x = 48,025,521,209.36
  5. Step 5: Solve for x
    x = 48,025,521,209.36/251,535.04
  6. Step 6: Final answer
    x = 190,929.75

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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.