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Finding the Fourth Proportional to 360,919.32, 497,954.16 and 209,987.16

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Solution

The fourth proportional to 360,919.32, 497,954.16 and 209,987.16 is: 289,715.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,919.32 : 497,954.16 = 209,987.16 : x
  2. Step 2: Convert to fraction form
    360,919.32/497,954.16 = 209,987.16/x
  3. Step 3: Cross multiply
    360,919.32x = 497,954.16 × 209,987.16
  4. Step 4: Simplify right side
    360,919.32x = 104,563,979,868.59
  5. Step 5: Solve for x
    x = 104,563,979,868.59/360,919.32
  6. Step 6: Final answer
    x = 289,715.66

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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.