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Finding the Fourth Proportional to 346,901.68, 478,871.91 and 210,979.26

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Solution

The fourth proportional to 346,901.68, 478,871.91 and 210,979.26 is: 291,241.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,901.68 : 478,871.91 = 210,979.26 : x
  2. Step 2: Convert to fraction form
    346,901.68/478,871.91 = 210,979.26/x
  3. Step 3: Cross multiply
    346,901.68x = 478,871.91 × 210,979.26
  4. Step 4: Simplify right side
    346,901.68x = 101,032,041,206.59
  5. Step 5: Solve for x
    x = 101,032,041,206.59/346,901.68
  6. Step 6: Final answer
    x = 291,241.14

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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.