Home / 223,931.32-309,004.79-133,272.72

Finding the Fourth Proportional to 223,931.32, 309,004.79 and 133,272.72

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Solution

The fourth proportional to 223,931.32, 309,004.79 and 133,272.72 is: 183,904.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,931.32 : 309,004.79 = 133,272.72 : x
  2. Step 2: Convert to fraction form
    223,931.32/309,004.79 = 133,272.72/x
  3. Step 3: Cross multiply
    223,931.32x = 309,004.79 × 133,272.72
  4. Step 4: Simplify right side
    223,931.32x = 41,181,908,189.97
  5. Step 5: Solve for x
    x = 41,181,908,189.97/223,931.32
  6. Step 6: Final answer
    x = 183,904.19

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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.