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Finding the Fourth Proportional to 398,342.88, 549,548.64 and 277,554.24

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Solution

The fourth proportional to 398,342.88, 549,548.64 and 277,554.24 is: 382,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,342.88 : 549,548.64 = 277,554.24 : x
  2. Step 2: Convert to fraction form
    398,342.88/549,548.64 = 277,554.24/x
  3. Step 3: Cross multiply
    398,342.88x = 549,548.64 × 277,554.24
  4. Step 4: Simplify right side
    398,342.88x = 152,529,555,118.23
  5. Step 5: Solve for x
    x = 152,529,555,118.23/398,342.88
  6. Step 6: Final answer
    x = 382,910.21

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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.