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Finding the Fourth Proportional to 239,750.16, 359,625.32 and 81,980.08

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Solution

The fourth proportional to 239,750.16, 359,625.32 and 81,980.08 is: 122,970.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,750.16 : 359,625.32 = 81,980.08 : x
  2. Step 2: Convert to fraction form
    239,750.16/359,625.32 = 81,980.08/x
  3. Step 3: Cross multiply
    239,750.16x = 359,625.32 × 81,980.08
  4. Step 4: Simplify right side
    239,750.16x = 29,482,112,503.63
  5. Step 5: Solve for x
    x = 29,482,112,503.63/239,750.16
  6. Step 6: Final answer
    x = 122,970.15

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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.