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Finding the Fourth Proportional to 356,449.68, 535,510.72 and 336,274.20

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Solution

The fourth proportional to 356,449.68, 535,510.72 and 336,274.20 is: 505,200.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,449.68 : 535,510.72 = 336,274.20 : x
  2. Step 2: Convert to fraction form
    356,449.68/535,510.72 = 336,274.20/x
  3. Step 3: Cross multiply
    356,449.68x = 535,510.72 × 336,274.20
  4. Step 4: Simplify right side
    356,449.68x = 180,078,438,959.42
  5. Step 5: Solve for x
    x = 180,078,438,959.42/356,449.68
  6. Step 6: Final answer
    x = 505,200.17

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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.