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Finding the Fourth Proportional to 369,044.80, 553,218.90 and 200,316.40

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Solution

The fourth proportional to 369,044.80, 553,218.90 and 200,316.40 is: 300,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,044.80 : 553,218.90 = 200,316.40 : x
  2. Step 2: Convert to fraction form
    369,044.80/553,218.90 = 200,316.40/x
  3. Step 3: Cross multiply
    369,044.80x = 553,218.90 × 200,316.40
  4. Step 4: Simplify right side
    369,044.80x = 110,818,818,459.96
  5. Step 5: Solve for x
    x = 110,818,818,459.96/369,044.80
  6. Step 6: Final answer
    x = 300,285.54

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1.5x scale

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.