Home / 280,159.54-386,619.64-152,835.12

Finding the Fourth Proportional to 280,159.54, 386,619.64 and 152,835.12

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Solution

The fourth proportional to 280,159.54, 386,619.64 and 152,835.12 is: 210,912.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,159.54 : 386,619.64 = 152,835.12 : x
  2. Step 2: Convert to fraction form
    280,159.54/386,619.64 = 152,835.12/x
  3. Step 3: Cross multiply
    280,159.54x = 386,619.64 × 152,835.12
  4. Step 4: Simplify right side
    280,159.54x = 59,089,058,691.67
  5. Step 5: Solve for x
    x = 59,089,058,691.67/280,159.54
  6. Step 6: Final answer
    x = 210,912.18

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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.