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Finding the Fourth Proportional to 353,173.43, 487,559.64 and 239,055.16

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Solution

The fourth proportional to 353,173.43, 487,559.64 and 239,055.16 is: 330,018.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,173.43 : 487,559.64 = 239,055.16 : x
  2. Step 2: Convert to fraction form
    353,173.43/487,559.64 = 239,055.16/x
  3. Step 3: Cross multiply
    353,173.43x = 487,559.64 × 239,055.16
  4. Step 4: Simplify right side
    353,173.43x = 116,553,646,554.47
  5. Step 5: Solve for x
    x = 116,553,646,554.47/353,173.43
  6. Step 6: Final answer
    x = 330,018.17

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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.