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Finding the Fourth Proportional to 289,454.48, 399,459.48 and 168,576.32

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Solution

The fourth proportional to 289,454.48, 399,459.48 and 168,576.32 is: 232,642.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,454.48 : 399,459.48 = 168,576.32 : x
  2. Step 2: Convert to fraction form
    289,454.48/399,459.48 = 168,576.32/x
  3. Step 3: Cross multiply
    289,454.48x = 399,459.48 × 168,576.32
  4. Step 4: Simplify right side
    289,454.48x = 67,339,409,127.51
  5. Step 5: Solve for x
    x = 67,339,409,127.51/289,454.48
  6. Step 6: Final answer
    x = 232,642.48

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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.