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Finding the Fourth Proportional to 291,254.79, 436,931.99 and 133,496.76

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Solution

The fourth proportional to 291,254.79, 436,931.99 and 133,496.76 is: 200,267.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,254.79 : 436,931.99 = 133,496.76 : x
  2. Step 2: Convert to fraction form
    291,254.79/436,931.99 = 133,496.76/x
  3. Step 3: Cross multiply
    291,254.79x = 436,931.99 × 133,496.76
  4. Step 4: Simplify right side
    291,254.79x = 58,329,005,339.09
  5. Step 5: Solve for x
    x = 58,329,005,339.09/291,254.79
  6. Step 6: Final answer
    x = 200,267.97

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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.