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Finding the Fourth Proportional to 291,228.90, 436,916.13 and 231,482.79

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Solution

The fourth proportional to 291,228.90, 436,916.13 and 231,482.79 is: 347,282.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,228.90 : 436,916.13 = 231,482.79 : x
  2. Step 2: Convert to fraction form
    291,228.90/436,916.13 = 231,482.79/x
  3. Step 3: Cross multiply
    291,228.90x = 436,916.13 × 231,482.79
  4. Step 4: Simplify right side
    291,228.90x = 101,138,563,900.34
  5. Step 5: Solve for x
    x = 101,138,563,900.34/291,228.90
  6. Step 6: Final answer
    x = 347,282.04

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1.5x scale

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.