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Finding the Fourth Proportional to 378,045.60, 567,068.40 and 189,088.80

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Solution

The fourth proportional to 378,045.60, 567,068.40 and 189,088.80 is: 283,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,045.60 : 567,068.40 = 189,088.80 : x
  2. Step 2: Convert to fraction form
    378,045.60/567,068.40 = 189,088.80/x
  3. Step 3: Cross multiply
    378,045.60x = 567,068.40 × 189,088.80
  4. Step 4: Simplify right side
    378,045.60x = 107,226,283,273.92
  5. Step 5: Solve for x
    x = 107,226,283,273.92/378,045.60
  6. Step 6: Final answer
    x = 283,633.20

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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.