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Finding the Fourth Proportional to 304,438.72, 420,294.32 and 183,610.72

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Solution

The fourth proportional to 304,438.72, 420,294.32 and 183,610.72 is: 253,484.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,438.72 : 420,294.32 = 183,610.72 : x
  2. Step 2: Convert to fraction form
    304,438.72/420,294.32 = 183,610.72/x
  3. Step 3: Cross multiply
    304,438.72x = 420,294.32 × 183,610.72
  4. Step 4: Simplify right side
    304,438.72x = 77,170,542,707.11
  5. Step 5: Solve for x
    x = 77,170,542,707.11/304,438.72
  6. Step 6: Final answer
    x = 253,484.65

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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.