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Finding the Fourth Proportional to 373,148.64, 514,959 and 212,031

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Solution

The fourth proportional to 373,148.64, 514,959 and 212,031 is: 292,610.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,148.64 : 514,959 = 212,031 : x
  2. Step 2: Convert to fraction form
    373,148.64/514,959 = 212,031/x
  3. Step 3: Cross multiply
    373,148.64x = 514,959 × 212,031
  4. Step 4: Simplify right side
    373,148.64x = 109,187,271,729
  5. Step 5: Solve for x
    x = 109,187,271,729/373,148.64
  6. Step 6: Final answer
    x = 292,610.67

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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.