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Finding the Fourth Proportional to 487,107.26, 672,186.88 and 266,340.51

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Solution

The fourth proportional to 487,107.26, 672,186.88 and 266,340.51 is: 367,538.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,107.26 : 672,186.88 = 266,340.51 : x
  2. Step 2: Convert to fraction form
    487,107.26/672,186.88 = 266,340.51/x
  3. Step 3: Cross multiply
    487,107.26x = 672,186.88 × 266,340.51
  4. Step 4: Simplify right side
    487,107.26x = 179,030,593,722.08
  5. Step 5: Solve for x
    x = 179,030,593,722.08/487,107.26
  6. Step 6: Final answer
    x = 367,538.34

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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.