Home / 302,928.20-454,392.29-81,312.20

Finding the Fourth Proportional to 302,928.20, 454,392.29 and 81,312.20

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Solution

The fourth proportional to 302,928.20, 454,392.29 and 81,312.20 is: 121,968.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,928.20 : 454,392.29 = 81,312.20 : x
  2. Step 2: Convert to fraction form
    302,928.20/454,392.29 = 81,312.20/x
  3. Step 3: Cross multiply
    302,928.20x = 454,392.29 × 81,312.20
  4. Step 4: Simplify right side
    302,928.20x = 36,947,634,084.42
  5. Step 5: Solve for x
    x = 36,947,634,084.42/302,928.20
  6. Step 6: Final answer
    x = 121,968.29

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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.