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Finding the Fourth Proportional to 553,312.02, 830,177.20 and 216,593.32

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Solution

The fourth proportional to 553,312.02, 830,177.20 and 216,593.32 is: 324,971.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,312.02 : 830,177.20 = 216,593.32 : x
  2. Step 2: Convert to fraction form
    553,312.02/830,177.20 = 216,593.32/x
  3. Step 3: Cross multiply
    553,312.02x = 830,177.20 × 216,593.32
  4. Step 4: Simplify right side
    553,312.02x = 179,810,835,936.30
  5. Step 5: Solve for x
    x = 179,810,835,936.30/553,312.02
  6. Step 6: Final answer
    x = 324,971.86

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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.