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Finding the Fourth Proportional to 369,871.80, 555,026.40 and 243,876.30

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Solution

The fourth proportional to 369,871.80, 555,026.40 and 243,876.30 is: 365,958.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,871.80 : 555,026.40 = 243,876.30 : x
  2. Step 2: Convert to fraction form
    369,871.80/555,026.40 = 243,876.30/x
  3. Step 3: Cross multiply
    369,871.80x = 555,026.40 × 243,876.30
  4. Step 4: Simplify right side
    369,871.80x = 135,357,784,834.32
  5. Step 5: Solve for x
    x = 135,357,784,834.32/369,871.80
  6. Step 6: Final answer
    x = 365,958.65

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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.