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Finding the Fourth Proportional to 553,353.60, 830,127.60 and 198,573.60

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Solution

The fourth proportional to 553,353.60, 830,127.60 and 198,573.60 is: 297,895.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,353.60 : 830,127.60 = 198,573.60 : x
  2. Step 2: Convert to fraction form
    553,353.60/830,127.60 = 198,573.60/x
  3. Step 3: Cross multiply
    553,353.60x = 830,127.60 × 198,573.60
  4. Step 4: Simplify right side
    553,353.60x = 164,841,425,991.36
  5. Step 5: Solve for x
    x = 164,841,425,991.36/553,353.60
  6. Step 6: Final answer
    x = 297,895.28

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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.