Home / 643,184.34-964,095.84-216,313.80

Finding the Fourth Proportional to 643,184.34, 964,095.84 and 216,313.80

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Solution

The fourth proportional to 643,184.34, 964,095.84 and 216,313.80 is: 324,241.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,184.34 : 964,095.84 = 216,313.80 : x
  2. Step 2: Convert to fraction form
    643,184.34/964,095.84 = 216,313.80/x
  3. Step 3: Cross multiply
    643,184.34x = 964,095.84 × 216,313.80
  4. Step 4: Simplify right side
    643,184.34x = 208,547,234,714.59
  5. Step 5: Solve for x
    x = 208,547,234,714.59/643,184.34
  6. Step 6: Final answer
    x = 324,241.78

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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.