Home / 284,578.12-392,683.62-157,236.28

Finding the Fourth Proportional to 284,578.12, 392,683.62 and 157,236.28

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Solution

The fourth proportional to 284,578.12, 392,683.62 and 157,236.28 is: 216,967.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,578.12 : 392,683.62 = 157,236.28 : x
  2. Step 2: Convert to fraction form
    284,578.12/392,683.62 = 157,236.28/x
  3. Step 3: Cross multiply
    284,578.12x = 392,683.62 × 157,236.28
  4. Step 4: Simplify right side
    284,578.12x = 61,744,111,625.73
  5. Step 5: Solve for x
    x = 61,744,111,625.73/284,578.12
  6. Step 6: Final answer
    x = 216,967.18

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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.