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Finding the Fourth Proportional to 356,342.80, 533,477.40 and 216,029.20

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Solution

The fourth proportional to 356,342.80, 533,477.40 and 216,029.20 is: 323,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,342.80 : 533,477.40 = 216,029.20 : x
  2. Step 2: Convert to fraction form
    356,342.80/533,477.40 = 216,029.20/x
  3. Step 3: Cross multiply
    356,342.80x = 533,477.40 × 216,029.20
  4. Step 4: Simplify right side
    356,342.80x = 115,246,695,940.08
  5. Step 5: Solve for x
    x = 115,246,695,940.08/356,342.80
  6. Step 6: Final answer
    x = 323,415.25

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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.