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Finding the Fourth Proportional to 395,641.92, 593,490 and 158,984.22

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Solution

The fourth proportional to 395,641.92, 593,490 and 158,984.22 is: 238,487.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,641.92 : 593,490 = 158,984.22 : x
  2. Step 2: Convert to fraction form
    395,641.92/593,490 = 158,984.22/x
  3. Step 3: Cross multiply
    395,641.92x = 593,490 × 158,984.22
  4. Step 4: Simplify right side
    395,641.92x = 94,355,544,727.80
  5. Step 5: Solve for x
    x = 94,355,544,727.80/395,641.92
  6. Step 6: Final answer
    x = 238,487.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.