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Finding the Fourth Proportional to 400,938.40, 601,407.60 and 179,322.40

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Solution

The fourth proportional to 400,938.40, 601,407.60 and 179,322.40 is: 268,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,938.40 : 601,407.60 = 179,322.40 : x
  2. Step 2: Convert to fraction form
    400,938.40/601,407.60 = 179,322.40/x
  3. Step 3: Cross multiply
    400,938.40x = 601,407.60 × 179,322.40
  4. Step 4: Simplify right side
    400,938.40x = 107,845,854,210.24
  5. Step 5: Solve for x
    x = 107,845,854,210.24/400,938.40
  6. Step 6: Final answer
    x = 268,983.60

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1.5x scale

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.