Home / 285,127.08-393,434.17-157,802.37

Finding the Fourth Proportional to 285,127.08, 393,434.17 and 157,802.37

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Solution

The fourth proportional to 285,127.08, 393,434.17 and 157,802.37 is: 217,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,127.08 : 393,434.17 = 157,802.37 : x
  2. Step 2: Convert to fraction form
    285,127.08/393,434.17 = 157,802.37/x
  3. Step 3: Cross multiply
    285,127.08x = 393,434.17 × 157,802.37
  4. Step 4: Simplify right side
    285,127.08x = 62,084,844,464.98
  5. Step 5: Solve for x
    x = 62,084,844,464.98/285,127.08
  6. Step 6: Final answer
    x = 217,744.47

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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.