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Finding the Fourth Proportional to 398,029.80, 549,374.82 and 247,240.68

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Solution

The fourth proportional to 398,029.80, 549,374.82 and 247,240.68 is: 341,250.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,029.80 : 549,374.82 = 247,240.68 : x
  2. Step 2: Convert to fraction form
    398,029.80/549,374.82 = 247,240.68/x
  3. Step 3: Cross multiply
    398,029.80x = 549,374.82 × 247,240.68
  4. Step 4: Simplify right side
    398,029.80x = 135,827,804,071.68
  5. Step 5: Solve for x
    x = 135,827,804,071.68/398,029.80
  6. Step 6: Final answer
    x = 341,250.34

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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.