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Finding the Fourth Proportional to 346,911.84, 478,711.84 and 210,927.04

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Solution

The fourth proportional to 346,911.84, 478,711.84 and 210,927.04 is: 291,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,911.84 : 478,711.84 = 210,927.04 : x
  2. Step 2: Convert to fraction form
    346,911.84/478,711.84 = 210,927.04/x
  3. Step 3: Cross multiply
    346,911.84x = 478,711.84 × 210,927.04
  4. Step 4: Simplify right side
    346,911.84x = 100,973,271,424.15
  5. Step 5: Solve for x
    x = 100,973,271,424.15/346,911.84
  6. Step 6: Final answer
    x = 291,063.20

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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.