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Finding the Fourth Proportional to 371,495.65, 512,669.96 and 210,346.39

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Solution

The fourth proportional to 371,495.65, 512,669.96 and 210,346.39 is: 290,281.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,495.65 : 512,669.96 = 210,346.39 : x
  2. Step 2: Convert to fraction form
    371,495.65/512,669.96 = 210,346.39/x
  3. Step 3: Cross multiply
    371,495.65x = 512,669.96 × 210,346.39
  4. Step 4: Simplify right side
    371,495.65x = 107,838,275,347.44
  5. Step 5: Solve for x
    x = 107,838,275,347.44/371,495.65
  6. Step 6: Final answer
    x = 290,281.39

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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.