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Finding the Fourth Proportional to 291,476.04, 436,681.29 and 211,315.29

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Solution

The fourth proportional to 291,476.04, 436,681.29 and 211,315.29 is: 316,586.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,476.04 : 436,681.29 = 211,315.29 : x
  2. Step 2: Convert to fraction form
    291,476.04/436,681.29 = 211,315.29/x
  3. Step 3: Cross multiply
    291,476.04x = 436,681.29 × 211,315.29
  4. Step 4: Simplify right side
    291,476.04x = 92,277,433,433.92
  5. Step 5: Solve for x
    x = 92,277,433,433.92/291,476.04
  6. Step 6: Final answer
    x = 316,586.69

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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.