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Finding the Fourth Proportional to 555,020.40, 832,919.40 and 239,703.60

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Solution

The fourth proportional to 555,020.40, 832,919.40 and 239,703.60 is: 359,723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,020.40 : 832,919.40 = 239,703.60 : x
  2. Step 2: Convert to fraction form
    555,020.40/832,919.40 = 239,703.60/x
  3. Step 3: Cross multiply
    555,020.40x = 832,919.40 × 239,703.60
  4. Step 4: Simplify right side
    555,020.40x = 199,653,778,689.84
  5. Step 5: Solve for x
    x = 199,653,778,689.84/555,020.40
  6. Step 6: Final answer
    x = 359,723.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.