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Finding the Fourth Proportional to 402,775.68, 555,829.64 and 230,749.34

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Solution

The fourth proportional to 402,775.68, 555,829.64 and 230,749.34 is: 318,433.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,775.68 : 555,829.64 = 230,749.34 : x
  2. Step 2: Convert to fraction form
    402,775.68/555,829.64 = 230,749.34/x
  3. Step 3: Cross multiply
    402,775.68x = 555,829.64 × 230,749.34
  4. Step 4: Simplify right side
    402,775.68x = 128,257,322,582.44
  5. Step 5: Solve for x
    x = 128,257,322,582.44/402,775.68
  6. Step 6: Final answer
    x = 318,433.63

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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.