Home / 218,354.07-301,334.50-122,864.16

Finding the Fourth Proportional to 218,354.07, 301,334.50 and 122,864.16

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Solution

The fourth proportional to 218,354.07, 301,334.50 and 122,864.16 is: 169,555.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,354.07 : 301,334.50 = 122,864.16 : x
  2. Step 2: Convert to fraction form
    218,354.07/301,334.50 = 122,864.16/x
  3. Step 3: Cross multiply
    218,354.07x = 301,334.50 × 122,864.16
  4. Step 4: Simplify right side
    218,354.07x = 37,023,210,221.52
  5. Step 5: Solve for x
    x = 37,023,210,221.52/218,354.07
  6. Step 6: Final answer
    x = 169,555.85

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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.