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Finding the Fourth Proportional to 374,357.45, 516,705.08 and 213,307.38

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Solution

The fourth proportional to 374,357.45, 516,705.08 and 213,307.38 is: 294,416.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,357.45 : 516,705.08 = 213,307.38 : x
  2. Step 2: Convert to fraction form
    374,357.45/516,705.08 = 213,307.38/x
  3. Step 3: Cross multiply
    374,357.45x = 516,705.08 × 213,307.38
  4. Step 4: Simplify right side
    374,357.45x = 110,217,005,780.95
  5. Step 5: Solve for x
    x = 110,217,005,780.95/374,357.45
  6. Step 6: Final answer
    x = 294,416.49

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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.