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Finding the Fourth Proportional to 346,462.65, 478,264.22 and 210,540.26

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Solution

The fourth proportional to 346,462.65, 478,264.22 and 210,540.26 is: 290,634.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,462.65 : 478,264.22 = 210,540.26 : x
  2. Step 2: Convert to fraction form
    346,462.65/478,264.22 = 210,540.26/x
  3. Step 3: Cross multiply
    346,462.65x = 478,264.22 × 210,540.26
  4. Step 4: Simplify right side
    346,462.65x = 100,693,869,783.48
  5. Step 5: Solve for x
    x = 100,693,869,783.48/346,462.65
  6. Step 6: Final answer
    x = 290,634.13

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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.