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Finding the Fourth Proportional to 228,159.75, 314,859.81 and 131,328.23

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Solution

The fourth proportional to 228,159.75, 314,859.81 and 131,328.23 is: 181,232.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,159.75 : 314,859.81 = 131,328.23 : x
  2. Step 2: Convert to fraction form
    228,159.75/314,859.81 = 131,328.23/x
  3. Step 3: Cross multiply
    228,159.75x = 314,859.81 × 131,328.23
  4. Step 4: Simplify right side
    228,159.75x = 41,349,980,463.62
  5. Step 5: Solve for x
    x = 41,349,980,463.62/228,159.75
  6. Step 6: Final answer
    x = 181,232.58

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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.