Home / 287,428.68-396,663.84-160,104.24

Finding the Fourth Proportional to 287,428.68, 396,663.84 and 160,104.24

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Solution

The fourth proportional to 287,428.68, 396,663.84 and 160,104.24 is: 220,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,428.68 : 396,663.84 = 160,104.24 : x
  2. Step 2: Convert to fraction form
    287,428.68/396,663.84 = 160,104.24/x
  3. Step 3: Cross multiply
    287,428.68x = 396,663.84 × 160,104.24
  4. Step 4: Simplify right side
    287,428.68x = 63,507,562,638.68
  5. Step 5: Solve for x
    x = 63,507,562,638.68/287,428.68
  6. Step 6: Final answer
    x = 220,950.68

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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.