Home / 278,861.02-384,827.18-158,025.32

Finding the Fourth Proportional to 278,861.02, 384,827.18 and 158,025.32

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Solution

The fourth proportional to 278,861.02, 384,827.18 and 158,025.32 is: 218,074.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,861.02 : 384,827.18 = 158,025.32 : x
  2. Step 2: Convert to fraction form
    278,861.02/384,827.18 = 158,025.32/x
  3. Step 3: Cross multiply
    278,861.02x = 384,827.18 × 158,025.32
  4. Step 4: Simplify right side
    278,861.02x = 60,812,438,264.20
  5. Step 5: Solve for x
    x = 60,812,438,264.20/278,861.02
  6. Step 6: Final answer
    x = 218,074.36

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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.