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Finding the Fourth Proportional to 370,203.60, 555,305.40 and 103,972.80

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Solution

The fourth proportional to 370,203.60, 555,305.40 and 103,972.80 is: 155,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,203.60 : 555,305.40 = 103,972.80 : x
  2. Step 2: Convert to fraction form
    370,203.60/555,305.40 = 103,972.80/x
  3. Step 3: Cross multiply
    370,203.60x = 555,305.40 × 103,972.80
  4. Step 4: Simplify right side
    370,203.60x = 57,736,657,293.12
  5. Step 5: Solve for x
    x = 57,736,657,293.12/370,203.60
  6. Step 6: Final answer
    x = 155,959.20

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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.