Home / 221,987.17-306,342.90-141,397.42

Finding the Fourth Proportional to 221,987.17, 306,342.90 and 141,397.42

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Solution

The fourth proportional to 221,987.17, 306,342.90 and 141,397.42 is: 195,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,987.17 : 306,342.90 = 141,397.42 : x
  2. Step 2: Convert to fraction form
    221,987.17/306,342.90 = 141,397.42/x
  3. Step 3: Cross multiply
    221,987.17x = 306,342.90 × 141,397.42
  4. Step 4: Simplify right side
    221,987.17x = 43,316,095,695.32
  5. Step 5: Solve for x
    x = 43,316,095,695.32/221,987.17
  6. Step 6: Final answer
    x = 195,128.83

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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.