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Finding the Fourth Proportional to 341,802.36, 512,704.80 and 105,143.40

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Solution

The fourth proportional to 341,802.36, 512,704.80 and 105,143.40 is: 157,715.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,802.36 : 512,704.80 = 105,143.40 : x
  2. Step 2: Convert to fraction form
    341,802.36/512,704.80 = 105,143.40/x
  3. Step 3: Cross multiply
    341,802.36x = 512,704.80 × 105,143.40
  4. Step 4: Simplify right side
    341,802.36x = 53,907,525,868.32
  5. Step 5: Solve for x
    x = 53,907,525,868.32/341,802.36
  6. Step 6: Final answer
    x = 157,715.49

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1.5x scale

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.