Home / 393,058.04-542,416.80-220,976.74

Finding the Fourth Proportional to 393,058.04, 542,416.80 and 220,976.74

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Solution

The fourth proportional to 393,058.04, 542,416.80 and 220,976.74 is: 304,946.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,058.04 : 542,416.80 = 220,976.74 : x
  2. Step 2: Convert to fraction form
    393,058.04/542,416.80 = 220,976.74/x
  3. Step 3: Cross multiply
    393,058.04x = 542,416.80 × 220,976.74
  4. Step 4: Simplify right side
    393,058.04x = 119,861,497,691.92
  5. Step 5: Solve for x
    x = 119,861,497,691.92/393,058.04
  6. Step 6: Final answer
    x = 304,946.06

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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.