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Finding the Fourth Proportional to 291,246.57, 436,895.10 and 88,888.20

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Solution

The fourth proportional to 291,246.57, 436,895.10 and 88,888.20 is: 133,340.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,246.57 : 436,895.10 = 88,888.20 : x
  2. Step 2: Convert to fraction form
    291,246.57/436,895.10 = 88,888.20/x
  3. Step 3: Cross multiply
    291,246.57x = 436,895.10 × 88,888.20
  4. Step 4: Simplify right side
    291,246.57x = 38,834,819,027.82
  5. Step 5: Solve for x
    x = 38,834,819,027.82/291,246.57
  6. Step 6: Final answer
    x = 133,340.00

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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.