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Finding the Fourth Proportional to 284,798.60, 426,852.30 and 126,859.40

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Solution

The fourth proportional to 284,798.60, 426,852.30 and 126,859.40 is: 190,135.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,798.60 : 426,852.30 = 126,859.40 : x
  2. Step 2: Convert to fraction form
    284,798.60/426,852.30 = 126,859.40/x
  3. Step 3: Cross multiply
    284,798.60x = 426,852.30 × 126,859.40
  4. Step 4: Simplify right side
    284,798.60x = 54,150,226,666.62
  5. Step 5: Solve for x
    x = 54,150,226,666.62/284,798.60
  6. Step 6: Final answer
    x = 190,135.16

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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.