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Finding the Fourth Proportional to 538,465.40, 807,698.10 and 183,879.80

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Solution

The fourth proportional to 538,465.40, 807,698.10 and 183,879.80 is: 275,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,465.40 : 807,698.10 = 183,879.80 : x
  2. Step 2: Convert to fraction form
    538,465.40/807,698.10 = 183,879.80/x
  3. Step 3: Cross multiply
    538,465.40x = 807,698.10 × 183,879.80
  4. Step 4: Simplify right side
    538,465.40x = 148,519,365,088.38
  5. Step 5: Solve for x
    x = 148,519,365,088.38/538,465.40
  6. Step 6: Final answer
    x = 275,819.70

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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.