Home / 236,728.04-326,683-129,298.08

Finding the Fourth Proportional to 236,728.04, 326,683 and 129,298.08

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Solution

The fourth proportional to 236,728.04, 326,683 and 129,298.08 is: 178,430.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,728.04 : 326,683 = 129,298.08 : x
  2. Step 2: Convert to fraction form
    236,728.04/326,683 = 129,298.08/x
  3. Step 3: Cross multiply
    236,728.04x = 326,683 × 129,298.08
  4. Step 4: Simplify right side
    236,728.04x = 42,239,484,668.64
  5. Step 5: Solve for x
    x = 42,239,484,668.64/236,728.04
  6. Step 6: Final answer
    x = 178,430.42

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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.