Home / 209,455.16-289,039.49-113,962.24

Finding the Fourth Proportional to 209,455.16, 289,039.49 and 113,962.24

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Solution

The fourth proportional to 209,455.16, 289,039.49 and 113,962.24 is: 157,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,455.16 : 289,039.49 = 113,962.24 : x
  2. Step 2: Convert to fraction form
    209,455.16/289,039.49 = 113,962.24/x
  3. Step 3: Cross multiply
    209,455.16x = 289,039.49 × 113,962.24
  4. Step 4: Simplify right side
    209,455.16x = 32,939,587,728.86
  5. Step 5: Solve for x
    x = 32,939,587,728.86/209,455.16
  6. Step 6: Final answer
    x = 157,263.20

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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.