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Finding the Fourth Proportional to 319,029.52, 440,280.40 and 175,789.54

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Solution

The fourth proportional to 319,029.52, 440,280.40 and 175,789.54 is: 242,600.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,029.52 : 440,280.40 = 175,789.54 : x
  2. Step 2: Convert to fraction form
    319,029.52/440,280.40 = 175,789.54/x
  3. Step 3: Cross multiply
    319,029.52x = 440,280.40 × 175,789.54
  4. Step 4: Simplify right side
    319,029.52x = 77,396,688,987.02
  5. Step 5: Solve for x
    x = 77,396,688,987.02/319,029.52
  6. Step 6: Final answer
    x = 242,600.40

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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.