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Finding the Fourth Proportional to 553,372.40, 830,447.40 and 238,055.60

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Solution

The fourth proportional to 553,372.40, 830,447.40 and 238,055.60 is: 357,250.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,372.40 : 830,447.40 = 238,055.60 : x
  2. Step 2: Convert to fraction form
    553,372.40/830,447.40 = 238,055.60/x
  3. Step 3: Cross multiply
    553,372.40x = 830,447.40 × 238,055.60
  4. Step 4: Simplify right side
    553,372.40x = 197,692,654,075.44
  5. Step 5: Solve for x
    x = 197,692,654,075.44/553,372.40
  6. Step 6: Final answer
    x = 357,250.66

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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.