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Finding the Fourth Proportional to 398,190.40, 549,503.49 and 237,051.02

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Solution

The fourth proportional to 398,190.40, 549,503.49 and 237,051.02 is: 327,130.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,190.40 : 549,503.49 = 237,051.02 : x
  2. Step 2: Convert to fraction form
    398,190.40/549,503.49 = 237,051.02/x
  3. Step 3: Cross multiply
    398,190.40x = 549,503.49 × 237,051.02
  4. Step 4: Simplify right side
    398,190.40x = 130,260,365,060.76
  5. Step 5: Solve for x
    x = 130,260,365,060.76/398,190.40
  6. Step 6: Final answer
    x = 327,130.85

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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.