Home / 236,278.90-326,058.96-128,851

Finding the Fourth Proportional to 236,278.90, 326,058.96 and 128,851

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Solution

The fourth proportional to 236,278.90, 326,058.96 and 128,851 is: 177,811.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,278.90 : 326,058.96 = 128,851 : x
  2. Step 2: Convert to fraction form
    236,278.90/326,058.96 = 128,851/x
  3. Step 3: Cross multiply
    236,278.90x = 326,058.96 × 128,851
  4. Step 4: Simplify right side
    236,278.90x = 42,013,023,054.96
  5. Step 5: Solve for x
    x = 42,013,023,054.96/236,278.90
  6. Step 6: Final answer
    x = 177,811.15

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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.