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Finding the Fourth Proportional to 292,298.40, 438,841.80 and 187,322.40

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Solution

The fourth proportional to 292,298.40, 438,841.80 and 187,322.40 is: 281,236.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,298.40 : 438,841.80 = 187,322.40 : x
  2. Step 2: Convert to fraction form
    292,298.40/438,841.80 = 187,322.40/x
  3. Step 3: Cross multiply
    292,298.40x = 438,841.80 × 187,322.40
  4. Step 4: Simplify right side
    292,298.40x = 82,204,899,196.32
  5. Step 5: Solve for x
    x = 82,204,899,196.32/292,298.40
  6. Step 6: Final answer
    x = 281,236.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.