Home / 443,038.12-664,323.66-193,428.52

Finding the Fourth Proportional to 443,038.12, 664,323.66 and 193,428.52

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Solution

The fourth proportional to 443,038.12, 664,323.66 and 193,428.52 is: 290,040.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,038.12 : 664,323.66 = 193,428.52 : x
  2. Step 2: Convert to fraction form
    443,038.12/664,323.66 = 193,428.52/x
  3. Step 3: Cross multiply
    443,038.12x = 664,323.66 × 193,428.52
  4. Step 4: Simplify right side
    443,038.12x = 128,499,142,354.78
  5. Step 5: Solve for x
    x = 128,499,142,354.78/443,038.12
  6. Step 6: Final answer
    x = 290,040.83

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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.