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Finding the Fourth Proportional to 382,303.80, 573,455.70 and 256,332.60

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Solution

The fourth proportional to 382,303.80, 573,455.70 and 256,332.60 is: 384,498.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,303.80 : 573,455.70 = 256,332.60 : x
  2. Step 2: Convert to fraction form
    382,303.80/573,455.70 = 256,332.60/x
  3. Step 3: Cross multiply
    382,303.80x = 573,455.70 × 256,332.60
  4. Step 4: Simplify right side
    382,303.80x = 146,995,390,565.82
  5. Step 5: Solve for x
    x = 146,995,390,565.82/382,303.80
  6. Step 6: Final answer
    x = 384,498.90

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Similar ratio
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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.