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Finding the Fourth Proportional to 248,543.60, 372,482.76 and 90,623.12

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Solution

The fourth proportional to 248,543.60, 372,482.76 and 90,623.12 is: 135,813.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,543.60 : 372,482.76 = 90,623.12 : x
  2. Step 2: Convert to fraction form
    248,543.60/372,482.76 = 90,623.12/x
  3. Step 3: Cross multiply
    248,543.60x = 372,482.76 × 90,623.12
  4. Step 4: Simplify right side
    248,543.60x = 33,755,549,857.41
  5. Step 5: Solve for x
    x = 33,755,549,857.41/248,543.60
  6. Step 6: Final answer
    x = 135,813.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.