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Finding the Fourth Proportional to 402,627.70, 555,627.36 and 230,548.26

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Solution

The fourth proportional to 402,627.70, 555,627.36 and 230,548.26 is: 318,157.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,627.70 : 555,627.36 = 230,548.26 : x
  2. Step 2: Convert to fraction form
    402,627.70/555,627.36 = 230,548.26/x
  3. Step 3: Cross multiply
    402,627.70x = 555,627.36 × 230,548.26
  4. Step 4: Simplify right side
    402,627.70x = 128,098,921,056.39
  5. Step 5: Solve for x
    x = 128,098,921,056.39/402,627.70
  6. Step 6: Final answer
    x = 318,157.25

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1.5x scale

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.