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Finding the Fourth Proportional to 374,437.80, 561,656.70 and 367,439.40

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Solution

The fourth proportional to 374,437.80, 561,656.70 and 367,439.40 is: 551,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,437.80 : 561,656.70 = 367,439.40 : x
  2. Step 2: Convert to fraction form
    374,437.80/561,656.70 = 367,439.40/x
  3. Step 3: Cross multiply
    374,437.80x = 561,656.70 × 367,439.40
  4. Step 4: Simplify right side
    374,437.80x = 206,374,800,853.98
  5. Step 5: Solve for x
    x = 206,374,800,853.98/374,437.80
  6. Step 6: Final answer
    x = 551,159.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.