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Finding the Fourth Proportional to 207,007.80, 310,511.70 and 144,022.20

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Solution

The fourth proportional to 207,007.80, 310,511.70 and 144,022.20 is: 216,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,007.80 : 310,511.70 = 144,022.20 : x
  2. Step 2: Convert to fraction form
    207,007.80/310,511.70 = 144,022.20/x
  3. Step 3: Cross multiply
    207,007.80x = 310,511.70 × 144,022.20
  4. Step 4: Simplify right side
    207,007.80x = 44,720,578,159.74
  5. Step 5: Solve for x
    x = 44,720,578,159.74/207,007.80
  6. Step 6: Final answer
    x = 216,033.30

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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.