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Finding the Fourth Proportional to 497,135.40, 745,703.10 and 273,186.60

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Solution

The fourth proportional to 497,135.40, 745,703.10 and 273,186.60 is: 409,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,135.40 : 745,703.10 = 273,186.60 : x
  2. Step 2: Convert to fraction form
    497,135.40/745,703.10 = 273,186.60/x
  3. Step 3: Cross multiply
    497,135.40x = 745,703.10 × 273,186.60
  4. Step 4: Simplify right side
    497,135.40x = 203,716,094,498.46
  5. Step 5: Solve for x
    x = 203,716,094,498.46/497,135.40
  6. Step 6: Final answer
    x = 409,779.90

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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.