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Finding the Fourth Proportional to 390,717.99, 586,054.31 and 150,784.95

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Solution

The fourth proportional to 390,717.99, 586,054.31 and 150,784.95 is: 226,168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,717.99 : 586,054.31 = 150,784.95 : x
  2. Step 2: Convert to fraction form
    390,717.99/586,054.31 = 150,784.95/x
  3. Step 3: Cross multiply
    390,717.99x = 586,054.31 × 150,784.95
  4. Step 4: Simplify right side
    390,717.99x = 88,368,171,274.41
  5. Step 5: Solve for x
    x = 88,368,171,274.41/390,717.99
  6. Step 6: Final answer
    x = 226,168.68

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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.