Home / 236,931.51-326,964.69-129,501.48

Finding the Fourth Proportional to 236,931.51, 326,964.69 and 129,501.48

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Solution

The fourth proportional to 236,931.51, 326,964.69 and 129,501.48 is: 178,711.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,931.51 : 326,964.69 = 129,501.48 : x
  2. Step 2: Convert to fraction form
    236,931.51/326,964.69 = 129,501.48/x
  3. Step 3: Cross multiply
    236,931.51x = 326,964.69 × 129,501.48
  4. Step 4: Simplify right side
    236,931.51x = 42,342,411,262.74
  5. Step 5: Solve for x
    x = 42,342,411,262.74/236,931.51
  6. Step 6: Final answer
    x = 178,711.61

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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.