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Finding the Fourth Proportional to 374,400.63, 516,613.14 and 213,258.87

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Solution

The fourth proportional to 374,400.63, 516,613.14 and 213,258.87 is: 294,263.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,400.63 : 516,613.14 = 213,258.87 : x
  2. Step 2: Convert to fraction form
    374,400.63/516,613.14 = 213,258.87/x
  3. Step 3: Cross multiply
    374,400.63x = 516,613.14 × 213,258.87
  4. Step 4: Simplify right side
    374,400.63x = 110,172,334,463.55
  5. Step 5: Solve for x
    x = 110,172,334,463.55/374,400.63
  6. Step 6: Final answer
    x = 294,263.22

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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.