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Finding the Fourth Proportional to 369,037.80, 553,208.40 and 200,309.40

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Solution

The fourth proportional to 369,037.80, 553,208.40 and 200,309.40 is: 300,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,037.80 : 553,208.40 = 200,309.40 : x
  2. Step 2: Convert to fraction form
    369,037.80/553,208.40 = 200,309.40/x
  3. Step 3: Cross multiply
    369,037.80x = 553,208.40 × 200,309.40
  4. Step 4: Simplify right side
    369,037.80x = 110,812,842,678.96
  5. Step 5: Solve for x
    x = 110,812,842,678.96/369,037.80
  6. Step 6: Final answer
    x = 300,275.05

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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.