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Finding the Fourth Proportional to 390,735.76, 586,151.10 and 110,253.04

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Solution

The fourth proportional to 390,735.76, 586,151.10 and 110,253.04 is: 165,392.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,735.76 : 586,151.10 = 110,253.04 : x
  2. Step 2: Convert to fraction form
    390,735.76/586,151.10 = 110,253.04/x
  3. Step 3: Cross multiply
    390,735.76x = 586,151.10 × 110,253.04
  4. Step 4: Simplify right side
    390,735.76x = 64,624,940,674.34
  5. Step 5: Solve for x
    x = 64,624,940,674.34/390,735.76
  6. Step 6: Final answer
    x = 165,392.95

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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.