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Finding the Fourth Proportional to 378,374.10, 566,783.55 and 191,490.90

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Solution

The fourth proportional to 378,374.10, 566,783.55 and 191,490.90 is: 286,842.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,374.10 : 566,783.55 = 191,490.90 : x
  2. Step 2: Convert to fraction form
    378,374.10/566,783.55 = 191,490.90/x
  3. Step 3: Cross multiply
    378,374.10x = 566,783.55 × 191,490.90
  4. Step 4: Simplify right side
    378,374.10x = 108,533,892,094.70
  5. Step 5: Solve for x
    x = 108,533,892,094.70/378,374.10
  6. Step 6: Final answer
    x = 286,842.82

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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.