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Finding the Fourth Proportional to 294,005.40, 439,841.70 and 254,995.80

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Solution

The fourth proportional to 294,005.40, 439,841.70 and 254,995.80 is: 381,482.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,005.40 : 439,841.70 = 254,995.80 : x
  2. Step 2: Convert to fraction form
    294,005.40/439,841.70 = 254,995.80/x
  3. Step 3: Cross multiply
    294,005.40x = 439,841.70 × 254,995.80
  4. Step 4: Simplify right side
    294,005.40x = 112,157,786,164.86
  5. Step 5: Solve for x
    x = 112,157,786,164.86/294,005.40
  6. Step 6: Final answer
    x = 381,482.06

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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.