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Finding the Fourth Proportional to 291,064.39, 436,596.68 and 130,953.31

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Solution

The fourth proportional to 291,064.39, 436,596.68 and 130,953.31 is: 196,430.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,064.39 : 436,596.68 = 130,953.31 : x
  2. Step 2: Convert to fraction form
    291,064.39/436,596.68 = 130,953.31/x
  3. Step 3: Cross multiply
    291,064.39x = 436,596.68 × 130,953.31
  4. Step 4: Simplify right side
    291,064.39x = 57,173,779,616.90
  5. Step 5: Solve for x
    x = 57,173,779,616.90/291,064.39
  6. Step 6: Final answer
    x = 196,430.01

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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.