Home / 387,379.02-581,243.80-197,741.46

Finding the Fourth Proportional to 387,379.02, 581,243.80 and 197,741.46

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Solution

The fourth proportional to 387,379.02, 581,243.80 and 197,741.46 is: 296,701.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,379.02 : 581,243.80 = 197,741.46 : x
  2. Step 2: Convert to fraction form
    387,379.02/581,243.80 = 197,741.46/x
  3. Step 3: Cross multiply
    387,379.02x = 581,243.80 × 197,741.46
  4. Step 4: Simplify right side
    387,379.02x = 114,935,997,627.95
  5. Step 5: Solve for x
    x = 114,935,997,627.95/387,379.02
  6. Step 6: Final answer
    x = 296,701.66

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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.