Home / 245,721.60-338,883.84-191,923.20

Finding the Fourth Proportional to 245,721.60, 338,883.84 and 191,923.20

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Solution

The fourth proportional to 245,721.60, 338,883.84 and 191,923.20 is: 264,688.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,721.60 : 338,883.84 = 191,923.20 : x
  2. Step 2: Convert to fraction form
    245,721.60/338,883.84 = 191,923.20/x
  3. Step 3: Cross multiply
    245,721.60x = 338,883.84 × 191,923.20
  4. Step 4: Simplify right side
    245,721.60x = 65,039,671,001.09
  5. Step 5: Solve for x
    x = 65,039,671,001.09/245,721.60
  6. Step 6: Final answer
    x = 264,688.46

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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.