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Finding the Fourth Proportional to 279,066.60, 418,599.90 and 89,526.60

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Solution

The fourth proportional to 279,066.60, 418,599.90 and 89,526.60 is: 134,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,066.60 : 418,599.90 = 89,526.60 : x
  2. Step 2: Convert to fraction form
    279,066.60/418,599.90 = 89,526.60/x
  3. Step 3: Cross multiply
    279,066.60x = 418,599.90 × 89,526.60
  4. Step 4: Simplify right side
    279,066.60x = 37,475,825,807.34
  5. Step 5: Solve for x
    x = 37,475,825,807.34/279,066.60
  6. Step 6: Final answer
    x = 134,289.90

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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.