Home / 285,166.08-393,488-157,841.36

Finding the Fourth Proportional to 285,166.08, 393,488 and 157,841.36

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Solution

The fourth proportional to 285,166.08, 393,488 and 157,841.36 is: 217,798.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,166.08 : 393,488 = 157,841.36 : x
  2. Step 2: Convert to fraction form
    285,166.08/393,488 = 157,841.36/x
  3. Step 3: Cross multiply
    285,166.08x = 393,488 × 157,841.36
  4. Step 4: Simplify right side
    285,166.08x = 62,108,681,063.68
  5. Step 5: Solve for x
    x = 62,108,681,063.68/285,166.08
  6. Step 6: Final answer
    x = 217,798.28

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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.