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Finding the Fourth Proportional to 372,570.32, 514,132.80 and 211,415.76

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Solution

The fourth proportional to 372,570.32, 514,132.80 and 211,415.76 is: 291,745.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,570.32 : 514,132.80 = 211,415.76 : x
  2. Step 2: Convert to fraction form
    372,570.32/514,132.80 = 211,415.76/x
  3. Step 3: Cross multiply
    372,570.32x = 514,132.80 × 211,415.76
  4. Step 4: Simplify right side
    372,570.32x = 108,695,776,652.93
  5. Step 5: Solve for x
    x = 108,695,776,652.93/372,570.32
  6. Step 6: Final answer
    x = 291,745.67

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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.