Home / 285,026.16-393,351.48-157,707.12

Finding the Fourth Proportional to 285,026.16, 393,351.48 and 157,707.12

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Solution

The fourth proportional to 285,026.16, 393,351.48 and 157,707.12 is: 217,644.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,026.16 : 393,351.48 = 157,707.12 : x
  2. Step 2: Convert to fraction form
    285,026.16/393,351.48 = 157,707.12/x
  3. Step 3: Cross multiply
    285,026.16x = 393,351.48 × 157,707.12
  4. Step 4: Simplify right side
    285,026.16x = 62,034,329,058.54
  5. Step 5: Solve for x
    x = 62,034,329,058.54/285,026.16
  6. Step 6: Final answer
    x = 217,644.34

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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.