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Finding the Fourth Proportional to 372,401.34, 558,465.93 and 135,673.98

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Solution

The fourth proportional to 372,401.34, 558,465.93 and 135,673.98 is: 203,461.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,401.34 : 558,465.93 = 135,673.98 : x
  2. Step 2: Convert to fraction form
    372,401.34/558,465.93 = 135,673.98/x
  3. Step 3: Cross multiply
    372,401.34x = 558,465.93 × 135,673.98
  4. Step 4: Simplify right side
    372,401.34x = 75,769,295,417.50
  5. Step 5: Solve for x
    x = 75,769,295,417.50/372,401.34
  6. Step 6: Final answer
    x = 203,461.39

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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.