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Finding the Fourth Proportional to 149,480.64, 224,117.28 and 79,409.16

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Solution

The fourth proportional to 149,480.64, 224,117.28 and 79,409.16 is: 119,058.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,480.64 : 224,117.28 = 79,409.16 : x
  2. Step 2: Convert to fraction form
    149,480.64/224,117.28 = 79,409.16/x
  3. Step 3: Cross multiply
    149,480.64x = 224,117.28 × 79,409.16
  4. Step 4: Simplify right side
    149,480.64x = 17,796,964,946.28
  5. Step 5: Solve for x
    x = 17,796,964,946.28/149,480.64
  6. Step 6: Final answer
    x = 119,058.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.