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Finding the Fourth Proportional to 371,495.40, 512,669.61 and 210,346.14

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Solution

The fourth proportional to 371,495.40, 512,669.61 and 210,346.14 is: 290,281.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,495.40 : 512,669.61 = 210,346.14 : x
  2. Step 2: Convert to fraction form
    371,495.40/512,669.61 = 210,346.14/x
  3. Step 3: Cross multiply
    371,495.40x = 512,669.61 × 210,346.14
  4. Step 4: Simplify right side
    371,495.40x = 107,838,073,558.81
  5. Step 5: Solve for x
    x = 107,838,073,558.81/371,495.40
  6. Step 6: Final answer
    x = 290,281.05

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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.