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Finding the Fourth Proportional to 319,040.64, 440,435.52 and 247,259.52

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Solution

The fourth proportional to 319,040.64, 440,435.52 and 247,259.52 is: 341,341.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,040.64 : 440,435.52 = 247,259.52 : x
  2. Step 2: Convert to fraction form
    319,040.64/440,435.52 = 247,259.52/x
  3. Step 3: Cross multiply
    319,040.64x = 440,435.52 × 247,259.52
  4. Step 4: Simplify right side
    319,040.64x = 108,901,875,266.15
  5. Step 5: Solve for x
    x = 108,901,875,266.15/319,040.64
  6. Step 6: Final answer
    x = 341,341.70

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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.