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Finding the Fourth Proportional to 207,758.29, 286,839.88 and 130,340.07

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Solution

The fourth proportional to 207,758.29, 286,839.88 and 130,340.07 is: 179,953.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,758.29 : 286,839.88 = 130,340.07 : x
  2. Step 2: Convert to fraction form
    207,758.29/286,839.88 = 130,340.07/x
  3. Step 3: Cross multiply
    207,758.29x = 286,839.88 × 130,340.07
  4. Step 4: Simplify right side
    207,758.29x = 37,386,730,037.99
  5. Step 5: Solve for x
    x = 37,386,730,037.99/207,758.29
  6. Step 6: Final answer
    x = 179,953.01

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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.