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Finding the Fourth Proportional to 265,484.40, 398,433.96 and 99,319.92

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Solution

The fourth proportional to 265,484.40, 398,433.96 and 99,319.92 is: 149,057.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,484.40 : 398,433.96 = 99,319.92 : x
  2. Step 2: Convert to fraction form
    265,484.40/398,433.96 = 99,319.92/x
  3. Step 3: Cross multiply
    265,484.40x = 398,433.96 × 99,319.92
  4. Step 4: Simplify right side
    265,484.40x = 39,572,429,032.48
  5. Step 5: Solve for x
    x = 39,572,429,032.48/265,484.40
  6. Step 6: Final answer
    x = 149,057.46

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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.