Home / 285,161.54-393,495.98-170,417.36

Finding the Fourth Proportional to 285,161.54, 393,495.98 and 170,417.36

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Solution

The fourth proportional to 285,161.54, 393,495.98 and 170,417.36 is: 235,159.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,161.54 : 393,495.98 = 170,417.36 : x
  2. Step 2: Convert to fraction form
    285,161.54/393,495.98 = 170,417.36/x
  3. Step 3: Cross multiply
    285,161.54x = 393,495.98 × 170,417.36
  4. Step 4: Simplify right side
    285,161.54x = 67,058,546,082.21
  5. Step 5: Solve for x
    x = 67,058,546,082.21/285,161.54
  6. Step 6: Final answer
    x = 235,159.85

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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.