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Finding the Fourth Proportional to 303,684.80, 455,466.72 and 103,988.48

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Solution

The fourth proportional to 303,684.80, 455,466.72 and 103,988.48 is: 155,962.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,684.80 : 455,466.72 = 103,988.48 : x
  2. Step 2: Convert to fraction form
    303,684.80/455,466.72 = 103,988.48/x
  3. Step 3: Cross multiply
    303,684.80x = 455,466.72 × 103,988.48
  4. Step 4: Simplify right side
    303,684.80x = 47,363,291,903.39
  5. Step 5: Solve for x
    x = 47,363,291,903.39/303,684.80
  6. Step 6: Final answer
    x = 155,962.01

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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.