Home / 285,186.72-393,557.68-157,862.32

Finding the Fourth Proportional to 285,186.72, 393,557.68 and 157,862.32

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Solution

The fourth proportional to 285,186.72, 393,557.68 and 157,862.32 is: 217,850.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,186.72 : 393,557.68 = 157,862.32 : x
  2. Step 2: Convert to fraction form
    285,186.72/393,557.68 = 157,862.32/x
  3. Step 3: Cross multiply
    285,186.72x = 393,557.68 × 157,862.32
  4. Step 4: Simplify right side
    285,186.72x = 62,127,927,632.05
  5. Step 5: Solve for x
    x = 62,127,927,632.05/285,186.72
  6. Step 6: Final answer
    x = 217,850.00

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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.