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Finding the Fourth Proportional to 328,082.60, 452,509.50 and 291,333.28

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Solution

The fourth proportional to 328,082.60, 452,509.50 and 291,333.28 is: 401,822.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,082.60 : 452,509.50 = 291,333.28 : x
  2. Step 2: Convert to fraction form
    328,082.60/452,509.50 = 291,333.28/x
  3. Step 3: Cross multiply
    328,082.60x = 452,509.50 × 291,333.28
  4. Step 4: Simplify right side
    328,082.60x = 131,831,076,866.16
  5. Step 5: Solve for x
    x = 131,831,076,866.16/328,082.60
  6. Step 6: Final answer
    x = 401,822.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.