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Finding the Fourth Proportional to 330,689.82, 456,350.05 and 183,513.21

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Solution

The fourth proportional to 330,689.82, 456,350.05 and 183,513.21 is: 253,247.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,689.82 : 456,350.05 = 183,513.21 : x
  2. Step 2: Convert to fraction form
    330,689.82/456,350.05 = 183,513.21/x
  3. Step 3: Cross multiply
    330,689.82x = 456,350.05 × 183,513.21
  4. Step 4: Simplify right side
    330,689.82x = 83,746,262,559.16
  5. Step 5: Solve for x
    x = 83,746,262,559.16/330,689.82
  6. Step 6: Final answer
    x = 253,247.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.