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Finding the Fourth Proportional to 346,901.94, 478,872.26 and 210,979.52

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Solution

The fourth proportional to 346,901.94, 478,872.26 and 210,979.52 is: 291,241.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,901.94 : 478,872.26 = 210,979.52 : x
  2. Step 2: Convert to fraction form
    346,901.94/478,872.26 = 210,979.52/x
  3. Step 3: Cross multiply
    346,901.94x = 478,872.26 × 210,979.52
  4. Step 4: Simplify right side
    346,901.94x = 101,032,236,106.86
  5. Step 5: Solve for x
    x = 101,032,236,106.86/346,901.94
  6. Step 6: Final answer
    x = 291,241.48

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1.5x scale

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.