Home / 284,482.18-426,739.68-106,990.72

Finding the Fourth Proportional to 284,482.18, 426,739.68 and 106,990.72

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Solution

The fourth proportional to 284,482.18, 426,739.68 and 106,990.72 is: 160,492.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,482.18 : 426,739.68 = 106,990.72 : x
  2. Step 2: Convert to fraction form
    284,482.18/426,739.68 = 106,990.72/x
  3. Step 3: Cross multiply
    284,482.18x = 426,739.68 × 106,990.72
  4. Step 4: Simplify right side
    284,482.18x = 45,657,185,615.77
  5. Step 5: Solve for x
    x = 45,657,185,615.77/284,482.18
  6. Step 6: Final answer
    x = 160,492.25

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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.