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Finding the Fourth Proportional to 477,988.64, 717,045.60 and 162,360.80

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Solution

The fourth proportional to 477,988.64, 717,045.60 and 162,360.80 is: 243,562.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,988.64 : 717,045.60 = 162,360.80 : x
  2. Step 2: Convert to fraction form
    477,988.64/717,045.60 = 162,360.80/x
  3. Step 3: Cross multiply
    477,988.64x = 717,045.60 × 162,360.80
  4. Step 4: Simplify right side
    477,988.64x = 116,420,097,252.48
  5. Step 5: Solve for x
    x = 116,420,097,252.48/477,988.64
  6. Step 6: Final answer
    x = 243,562.48

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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.