Home / 209,922.28-289,733.18-145,566.16

Finding the Fourth Proportional to 209,922.28, 289,733.18 and 145,566.16

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Solution

The fourth proportional to 209,922.28, 289,733.18 and 145,566.16 is: 200,909.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,922.28 : 289,733.18 = 145,566.16 : x
  2. Step 2: Convert to fraction form
    209,922.28/289,733.18 = 145,566.16/x
  3. Step 3: Cross multiply
    209,922.28x = 289,733.18 × 145,566.16
  4. Step 4: Simplify right side
    209,922.28x = 42,175,346,437.19
  5. Step 5: Solve for x
    x = 42,175,346,437.19/209,922.28
  6. Step 6: Final answer
    x = 200,909.34

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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.