Home / 251,934.30-347,643.54-155,122.80

Finding the Fourth Proportional to 251,934.30, 347,643.54 and 155,122.80

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Solution

The fourth proportional to 251,934.30, 347,643.54 and 155,122.80 is: 214,053.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,934.30 : 347,643.54 = 155,122.80 : x
  2. Step 2: Convert to fraction form
    251,934.30/347,643.54 = 155,122.80/x
  3. Step 3: Cross multiply
    251,934.30x = 347,643.54 × 155,122.80
  4. Step 4: Simplify right side
    251,934.30x = 53,927,439,326.71
  5. Step 5: Solve for x
    x = 53,927,439,326.71/251,934.30
  6. Step 6: Final answer
    x = 214,053.58

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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.