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Finding the Fourth Proportional to 404,903.88, 558,742.86 and 243,811.08

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Solution

The fourth proportional to 404,903.88, 558,742.86 and 243,811.08 is: 336,444.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,903.88 : 558,742.86 = 243,811.08 : x
  2. Step 2: Convert to fraction form
    404,903.88/558,742.86 = 243,811.08/x
  3. Step 3: Cross multiply
    404,903.88x = 558,742.86 × 243,811.08
  4. Step 4: Simplify right side
    404,903.88x = 136,227,700,138.89
  5. Step 5: Solve for x
    x = 136,227,700,138.89/404,903.88
  6. Step 6: Final answer
    x = 336,444.54

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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.