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Finding the Fourth Proportional to 346,892.31, 478,858.95 and 210,969.92

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Solution

The fourth proportional to 346,892.31, 478,858.95 and 210,969.92 is: 291,228.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,892.31 : 478,858.95 = 210,969.92 : x
  2. Step 2: Convert to fraction form
    346,892.31/478,858.95 = 210,969.92/x
  3. Step 3: Cross multiply
    346,892.31x = 478,858.95 × 210,969.92
  4. Step 4: Simplify right side
    346,892.31x = 101,024,831,582.92
  5. Step 5: Solve for x
    x = 101,024,831,582.92/346,892.31
  6. Step 6: Final answer
    x = 291,228.23

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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.