Home / 236,909.94-326,934.54-129,477.48

Finding the Fourth Proportional to 236,909.94, 326,934.54 and 129,477.48

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Solution

The fourth proportional to 236,909.94, 326,934.54 and 129,477.48 is: 178,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,909.94 : 326,934.54 = 129,477.48 : x
  2. Step 2: Convert to fraction form
    236,909.94/326,934.54 = 129,477.48/x
  3. Step 3: Cross multiply
    236,909.94x = 326,934.54 × 129,477.48
  4. Step 4: Simplify right side
    236,909.94x = 42,330,660,364.16
  5. Step 5: Solve for x
    x = 42,330,660,364.16/236,909.94
  6. Step 6: Final answer
    x = 178,678.28

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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.