Home / 372,070.64-513,277.08-221,060.72

Finding the Fourth Proportional to 372,070.64, 513,277.08 and 221,060.72

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Solution

The fourth proportional to 372,070.64, 513,277.08 and 221,060.72 is: 304,956.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,070.64 : 513,277.08 = 221,060.72 : x
  2. Step 2: Convert to fraction form
    372,070.64/513,277.08 = 221,060.72/x
  3. Step 3: Cross multiply
    372,070.64x = 513,277.08 × 221,060.72
  4. Step 4: Simplify right side
    372,070.64x = 113,465,400,864.30
  5. Step 5: Solve for x
    x = 113,465,400,864.30/372,070.64
  6. Step 6: Final answer
    x = 304,956.61

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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.