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Finding the Fourth Proportional to 402,059.52, 554,820.48 and 223,200

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Solution

The fourth proportional to 402,059.52, 554,820.48 and 223,200 is: 308,003.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,059.52 : 554,820.48 = 223,200 : x
  2. Step 2: Convert to fraction form
    402,059.52/554,820.48 = 223,200/x
  3. Step 3: Cross multiply
    402,059.52x = 554,820.48 × 223,200
  4. Step 4: Simplify right side
    402,059.52x = 123,835,931,136
  5. Step 5: Solve for x
    x = 123,835,931,136/402,059.52
  6. Step 6: Final answer
    x = 308,003.98

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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.