Home / 289,518.03-399,534.93-160,464.84

Finding the Fourth Proportional to 289,518.03, 399,534.93 and 160,464.84

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Solution

The fourth proportional to 289,518.03, 399,534.93 and 160,464.84 is: 221,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,518.03 : 399,534.93 = 160,464.84 : x
  2. Step 2: Convert to fraction form
    289,518.03/399,534.93 = 160,464.84/x
  3. Step 3: Cross multiply
    289,518.03x = 399,534.93 × 160,464.84
  4. Step 4: Simplify right side
    289,518.03x = 64,111,308,616.86
  5. Step 5: Solve for x
    x = 64,111,308,616.86/289,518.03
  6. Step 6: Final answer
    x = 221,441.51

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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.