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Finding the Fourth Proportional to 311,875.72, 465,557.32 and 274,041.63

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Solution

The fourth proportional to 311,875.72, 465,557.32 and 274,041.63 is: 409,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,875.72 : 465,557.32 = 274,041.63 : x
  2. Step 2: Convert to fraction form
    311,875.72/465,557.32 = 274,041.63/x
  3. Step 3: Cross multiply
    311,875.72x = 465,557.32 × 274,041.63
  4. Step 4: Simplify right side
    311,875.72x = 127,582,087,173.78
  5. Step 5: Solve for x
    x = 127,582,087,173.78/311,875.72
  6. Step 6: Final answer
    x = 409,079.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.