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Finding the Fourth Proportional to 369,516.30, 554,493.15 and 243,520.80

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Solution

The fourth proportional to 369,516.30, 554,493.15 and 243,520.80 is: 365,425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,516.30 : 554,493.15 = 243,520.80 : x
  2. Step 2: Convert to fraction form
    369,516.30/554,493.15 = 243,520.80/x
  3. Step 3: Cross multiply
    369,516.30x = 554,493.15 × 243,520.80
  4. Step 4: Simplify right side
    369,516.30x = 135,030,615,482.52
  5. Step 5: Solve for x
    x = 135,030,615,482.52/369,516.30
  6. Step 6: Final answer
    x = 365,425.33

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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.