Home / 203,280.08-280,522.40-112,635.77

Finding the Fourth Proportional to 203,280.08, 280,522.40 and 112,635.77

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Solution

The fourth proportional to 203,280.08, 280,522.40 and 112,635.77 is: 155,435.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,280.08 : 280,522.40 = 112,635.77 : x
  2. Step 2: Convert to fraction form
    203,280.08/280,522.40 = 112,635.77/x
  3. Step 3: Cross multiply
    203,280.08x = 280,522.40 × 112,635.77
  4. Step 4: Simplify right side
    203,280.08x = 31,596,854,560.46
  5. Step 5: Solve for x
    x = 31,596,854,560.46/203,280.08
  6. Step 6: Final answer
    x = 155,435.08

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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.