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Finding the Fourth Proportional to 402,778.68, 555,833.78 and 230,752.34

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Solution

The fourth proportional to 402,778.68, 555,833.78 and 230,752.34 is: 318,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,778.68 : 555,833.78 = 230,752.34 : x
  2. Step 2: Convert to fraction form
    402,778.68/555,833.78 = 230,752.34/x
  3. Step 3: Cross multiply
    402,778.68x = 555,833.78 × 230,752.34
  4. Step 4: Simplify right side
    402,778.68x = 128,259,945,386.05
  5. Step 5: Solve for x
    x = 128,259,945,386.05/402,778.68
  6. Step 6: Final answer
    x = 318,437.77

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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.