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Finding the Fourth Proportional to 255,320.10, 382,980.15 and 188,889.98

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Solution

The fourth proportional to 255,320.10, 382,980.15 and 188,889.98 is: 283,334.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,320.10 : 382,980.15 = 188,889.98 : x
  2. Step 2: Convert to fraction form
    255,320.10/382,980.15 = 188,889.98/x
  3. Step 3: Cross multiply
    255,320.10x = 382,980.15 × 188,889.98
  4. Step 4: Simplify right side
    255,320.10x = 72,341,110,959.00
  5. Step 5: Solve for x
    x = 72,341,110,959.00/255,320.10
  6. Step 6: Final answer
    x = 283,334.96

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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.