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Finding the Fourth Proportional to 207,090.60, 310,417.20 and 118,152.60

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Solution

The fourth proportional to 207,090.60, 310,417.20 and 118,152.60 is: 177,104.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,090.60 : 310,417.20 = 118,152.60 : x
  2. Step 2: Convert to fraction form
    207,090.60/310,417.20 = 118,152.60/x
  3. Step 3: Cross multiply
    207,090.60x = 310,417.20 × 118,152.60
  4. Step 4: Simplify right side
    207,090.60x = 36,676,599,264.72
  5. Step 5: Solve for x
    x = 36,676,599,264.72/207,090.60
  6. Step 6: Final answer
    x = 177,104.12

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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.