Home / 288,968.08-398,856.10-168,132.71

Finding the Fourth Proportional to 288,968.08, 398,856.10 and 168,132.71

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Solution

The fourth proportional to 288,968.08, 398,856.10 and 168,132.71 is: 232,069.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,968.08 : 398,856.10 = 168,132.71 : x
  2. Step 2: Convert to fraction form
    288,968.08/398,856.10 = 168,132.71/x
  3. Step 3: Cross multiply
    288,968.08x = 398,856.10 × 168,132.71
  4. Step 4: Simplify right side
    288,968.08x = 67,060,756,993.03
  5. Step 5: Solve for x
    x = 67,060,756,993.03/288,968.08
  6. Step 6: Final answer
    x = 232,069.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.