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Finding the Fourth Proportional to 374,346.85, 516,598.71 and 213,216.90

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Solution

The fourth proportional to 374,346.85, 516,598.71 and 213,216.90 is: 294,239.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,346.85 : 516,598.71 = 213,216.90 : x
  2. Step 2: Convert to fraction form
    374,346.85/516,598.71 = 213,216.90/x
  3. Step 3: Cross multiply
    374,346.85x = 516,598.71 × 213,216.90
  4. Step 4: Simplify right side
    374,346.85x = 110,147,575,490.20
  5. Step 5: Solve for x
    x = 110,147,575,490.20/374,346.85
  6. Step 6: Final answer
    x = 294,239.35

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1.5x scale

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.