Home / 280,190.95-386,763.32-165,470.04

Finding the Fourth Proportional to 280,190.95, 386,763.32 and 165,470.04

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Solution

The fourth proportional to 280,190.95, 386,763.32 and 165,470.04 is: 228,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,190.95 : 386,763.32 = 165,470.04 : x
  2. Step 2: Convert to fraction form
    280,190.95/386,763.32 = 165,470.04/x
  3. Step 3: Cross multiply
    280,190.95x = 386,763.32 × 165,470.04
  4. Step 4: Simplify right side
    280,190.95x = 63,997,742,444.61
  5. Step 5: Solve for x
    x = 63,997,742,444.61/280,190.95
  6. Step 6: Final answer
    x = 228,407.60

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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.