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Finding the Fourth Proportional to 291,430.62, 437,125.86 and 179,128.18

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Solution

The fourth proportional to 291,430.62, 437,125.86 and 179,128.18 is: 268,679.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,430.62 : 437,125.86 = 179,128.18 : x
  2. Step 2: Convert to fraction form
    291,430.62/437,125.86 = 179,128.18/x
  3. Step 3: Cross multiply
    291,430.62x = 437,125.86 × 179,128.18
  4. Step 4: Simplify right side
    291,430.62x = 78,301,559,732.73
  5. Step 5: Solve for x
    x = 78,301,559,732.73/291,430.62
  6. Step 6: Final answer
    x = 268,679.93

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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.