Home / 280,270.46-386,781.45-152,954.21

Finding the Fourth Proportional to 280,270.46, 386,781.45 and 152,954.21

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Solution

The fourth proportional to 280,270.46, 386,781.45 and 152,954.21 is: 211,081.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,270.46 : 386,781.45 = 152,954.21 : x
  2. Step 2: Convert to fraction form
    280,270.46/386,781.45 = 152,954.21/x
  3. Step 3: Cross multiply
    280,270.46x = 386,781.45 × 152,954.21
  4. Step 4: Simplify right side
    280,270.46x = 59,159,851,127.40
  5. Step 5: Solve for x
    x = 59,159,851,127.40/280,270.46
  6. Step 6: Final answer
    x = 211,081.29

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1.5x scale

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.