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Finding the Fourth Proportional to 291,038.76, 436,075.20 and 101,399.04

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Solution

The fourth proportional to 291,038.76, 436,075.20 and 101,399.04 is: 151,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,038.76 : 436,075.20 = 101,399.04 : x
  2. Step 2: Convert to fraction form
    291,038.76/436,075.20 = 101,399.04/x
  3. Step 3: Cross multiply
    291,038.76x = 436,075.20 × 101,399.04
  4. Step 4: Simplify right side
    291,038.76x = 44,217,606,647.81
  5. Step 5: Solve for x
    x = 44,217,606,647.81/291,038.76
  6. Step 6: Final answer
    x = 151,930.30

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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.