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Finding the Fourth Proportional to 447,335.74, 617,329.65 and 243,386.80

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Solution

The fourth proportional to 447,335.74, 617,329.65 and 243,386.80 is: 335,877.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,335.74 : 617,329.65 = 243,386.80 : x
  2. Step 2: Convert to fraction form
    447,335.74/617,329.65 = 243,386.80/x
  3. Step 3: Cross multiply
    447,335.74x = 617,329.65 × 243,386.80
  4. Step 4: Simplify right side
    447,335.74x = 150,249,889,164.24
  5. Step 5: Solve for x
    x = 150,249,889,164.24/447,335.74
  6. Step 6: Final answer
    x = 335,877.23

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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.