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Finding the Fourth Proportional to 302,417.34, 417,162.09 and 189,043.26

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Solution

The fourth proportional to 302,417.34, 417,162.09 and 189,043.26 is: 260,771.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,417.34 : 417,162.09 = 189,043.26 : x
  2. Step 2: Convert to fraction form
    302,417.34/417,162.09 = 189,043.26/x
  3. Step 3: Cross multiply
    302,417.34x = 417,162.09 × 189,043.26
  4. Step 4: Simplify right side
    302,417.34x = 78,861,681,442.01
  5. Step 5: Solve for x
    x = 78,861,681,442.01/302,417.34
  6. Step 6: Final answer
    x = 260,771.03

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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.