Home / 374,049.12-561,146.88-137,393.64

Finding the Fourth Proportional to 374,049.12, 561,146.88 and 137,393.64

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Solution

The fourth proportional to 374,049.12, 561,146.88 and 137,393.64 is: 206,117.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,049.12 : 561,146.88 = 137,393.64 : x
  2. Step 2: Convert to fraction form
    374,049.12/561,146.88 = 137,393.64/x
  3. Step 3: Cross multiply
    374,049.12x = 561,146.88 × 137,393.64
  4. Step 4: Simplify right side
    374,049.12x = 77,098,012,417.84
  5. Step 5: Solve for x
    x = 77,098,012,417.84/374,049.12
  6. Step 6: Final answer
    x = 206,117.35

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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.