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Finding the Fourth Proportional to 371,477.46, 512,656.11 and 210,311.22

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Solution

The fourth proportional to 371,477.46, 512,656.11 and 210,311.22 is: 290,239.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,477.46 : 512,656.11 = 210,311.22 : x
  2. Step 2: Convert to fraction form
    371,477.46/512,656.11 = 210,311.22/x
  3. Step 3: Cross multiply
    371,477.46x = 512,656.11 × 210,311.22
  4. Step 4: Simplify right side
    371,477.46x = 107,817,331,934.55
  5. Step 5: Solve for x
    x = 107,817,331,934.55/371,477.46
  6. Step 6: Final answer
    x = 290,239.23

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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.