Home / 287,608.32-397,003.68-174,428.64

Finding the Fourth Proportional to 287,608.32, 397,003.68 and 174,428.64

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Solution

The fourth proportional to 287,608.32, 397,003.68 and 174,428.64 is: 240,774.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,608.32 : 397,003.68 = 174,428.64 : x
  2. Step 2: Convert to fraction form
    287,608.32/397,003.68 = 174,428.64/x
  3. Step 3: Cross multiply
    287,608.32x = 397,003.68 × 174,428.64
  4. Step 4: Simplify right side
    287,608.32x = 69,248,811,977.40
  5. Step 5: Solve for x
    x = 69,248,811,977.40/287,608.32
  6. Step 6: Final answer
    x = 240,774.72

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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.